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[Search a list of Patent Appplications for class 379]  Class   379TELEPHONIC COMMUNICATIONS
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[List of Patents for class 379 subclass 1.01]  1.01           DIAGNOSTIC TESTING, MALFUNCTION INDICATION, OR ELECTRICAL CONDITION MEASUREMENT
[List of Patents for class 379 subclass 1.02]  1.02           Subclass 1.02 indent level is 1 Of audio message storage and retrieval
[List of Patents for class 379 subclass 1.03]  1.03           Subclass 1.03 indent level is 1 Of data transmission
[List of Patents for class 379 subclass 1.04]  1.04           Subclass 1.04 indent level is 2 Qualifying line for data transmission
[List of Patents for class 379 subclass 2]  2           Subclass 2 indent level is 1 Including fault responsive disconnection of tested component
[List of Patents for class 379 subclass 3]  3           Subclass 3 indent level is 1 Of hybrid or echo suppressor or canceller
[List of Patents for class 379 subclass 4]  4           Subclass 4 indent level is 1 Of repeater
[List of Patents for class 379 subclass 7]  7           Subclass 7 indent level is 1 For detection of eavesdropping device
[List of Patents for class 379 subclass 8]  8           Subclass 8 indent level is 1 With blocking of normal usage
[List of Patents for class 379 subclass 9]  9           Subclass 9 indent level is 1 Of centralized switching system
[List of Patents for class 379 subclass 9.01]  9.01           Subclass 9.01 indent level is 2 Software compatibility
[List of Patents for class 379 subclass 9.02]  9.02           Subclass 9.02 indent level is 2 Maintenance console
[List of Patents for class 379 subclass 9.03]  9.03           Subclass 9.03 indent level is 2 Trouble ticket reporting
[List of Patents for class 379 subclass 9.04]  9.04           Subclass 9.04 indent level is 2 Record or report generation
[List of Patents for class 379 subclass 9.05]  9.05           Subclass 9.05 indent level is 2 Backup system
[List of Patents for class 379 subclass 9.06]  9.06           Subclass 9.06 indent level is 2 Of line interface circuitry
[List of Patents for class 379 subclass 14]  14           Subclass 14 indent level is 2 Of plural exchange network
[List of Patents for class 379 subclass 14.01]  14.01           Subclass 14.01 indent level is 3 Fault segmentation (e.g., error location in network)
[List of Patents for class 379 subclass 10.01]  10.01           Subclass 10.01 indent level is 2 By automatic testing sequence
[List of Patents for class 379 subclass 10.02]  10.02           Subclass 10.02 indent level is 3 By call generator
[List of Patents for class 379 subclass 10.03]  10.03           Subclass 10.03 indent level is 3 Script file generation or execution
[List of Patents for class 379 subclass 11]  11           Subclass 11 indent level is 3 Routiner
[List of Patents for class 379 subclass 12]  12           Subclass 12 indent level is 2 With dedicated testing line or trunk
[List of Patents for class 379 subclass 13]  13           Subclass 13 indent level is 2 Of call timing or charging equiment
[List of Patents for class 379 subclass 15.01]  15.01           Subclass 15.01 indent level is 2 Of switching equipment or network element
[List of Patents for class 379 subclass 15.02]  15.02           Subclass 15.02 indent level is 3 Advanced intelligent network (AIN)
[List of Patents for class 379 subclass 15.03]  15.03           Subclass 15.03 indent level is 4 Provisioning of service
[List of Patents for class 379 subclass 15.04]  15.04           Subclass 15.04 indent level is 4 Of plural AIN elements
[List of Patents for class 379 subclass 15.05]  15.05           Subclass 15.05 indent level is 5 Determining fault location
[List of Patents for class 379 subclass 16]  16           Subclass 16 indent level is 3 Of switching path
[List of Patents for class 379 subclass 17]  17           Subclass 17 indent level is 3 Of switching selector
[List of Patents for class 379 subclass 18]  18           Subclass 18 indent level is 3 By use of call address signal
[List of Patents for class 379 subclass 19]  19           Subclass 19 indent level is 3 Rapid manual connecting structure for test equipment
[List of Patents for class 379 subclass 20]  20           Subclass 20 indent level is 2 Of switchboard element condition (e.g., lamp)
[List of Patents for class 379 subclass 21]  21           Subclass 21 indent level is 1 Using portable test set (e.g., handset type)
[List of Patents for class 379 subclass 22]  22           Subclass 22 indent level is 1 Of trunk or long line
[List of Patents for class 379 subclass 22.01]  22.01           Subclass 22.01 indent level is 2 By loopback
[List of Patents for class 379 subclass 22.02]  22.02           Subclass 22.02 indent level is 2 By analysis of injected tone signal
[List of Patents for class 379 subclass 22.03]  22.03           Subclass 22.03 indent level is 2 Fault detection or fault location on telephone link (e.g., continuity, leakage)
[List of Patents for class 379 subclass 22.04]  22.04           Subclass 22.04 indent level is 3 Of digital loop carrier
[List of Patents for class 379 subclass 22.05]  22.05           Subclass 22.05 indent level is 4 Pair gain test controller
[List of Patents for class 379 subclass 22.06]  22.06           Subclass 22.06 indent level is 3 Having special connector
[List of Patents for class 379 subclass 22.07]  22.07           Subclass 22.07 indent level is 3 Telephone multiconducting wires (e.g., tip, ring and ground wires)
[List of Patents for class 379 subclass 22.08]  22.08           Subclass 22.08 indent level is 3 Noise
[List of Patents for class 379 subclass 23]  23           Subclass 23 indent level is 2 Of line signalling
[List of Patents for class 379 subclass 24]  24           Subclass 24 indent level is 2 Electrical parameter measurement (e.g., attenuation)
[List of Patents for class 379 subclass 25]  25           Subclass 25 indent level is 2 Conductor identification or location
[List of Patents for class 379 subclass 26.01]  26.01           Subclass 26.01 indent level is 1 Testing of network terminating interface, subscriber trunk interface, or service function
[List of Patents for class 379 subclass 26.02]  26.02           Subclass 26.02 indent level is 2 With a programmable or self-test device
[List of Patents for class 379 subclass 27.01]  27.01           Subclass 27.01 indent level is 1 Testing of subscriber loop or terminal
[List of Patents for class 379 subclass 27.02]  27.02           Subclass 27.02 indent level is 2 By generating call signal
[List of Patents for class 379 subclass 27.03]  27.03           Subclass 27.03 indent level is 2 By analysis of testing signal
[List of Patents for class 379 subclass 27.04]  27.04           Subclass 27.04 indent level is 2 By automatic testing sequence (e.g., programmable, test, script or test call generation program)
[List of Patents for class 379 subclass 27.05]  27.05           Subclass 27.05 indent level is 2 Having protection circuit (e.g., surge or short circuit protector)
[List of Patents for class 379 subclass 27.06]  27.06           Subclass 27.06 indent level is 2 Having electromechanical switch or relay
[List of Patents for class 379 subclass 27.07]  27.07           Subclass 27.07 indent level is 2 Having plugging maintenance or test module
[List of Patents for class 379 subclass 27.08]  27.08           Subclass 27.08 indent level is 2 Including sampling measurement technique
[List of Patents for class 379 subclass 28]  28           Subclass 28 indent level is 2 Of data transmission instrument
[List of Patents for class 379 subclass 29.01]  29.01           Subclass 29.01 indent level is 2 Terminal arrangement to enable remote testing (e.g., testing interface)
[List of Patents for class 379 subclass 29.02]  29.02           Subclass 29.02 indent level is 3 By simulator (e.g., computer simulates testing personnel)
[List of Patents for class 379 subclass 29.03]  29.03           Subclass 29.03 indent level is 3 Voltage or current determination
[List of Patents for class 379 subclass 29.04]  29.04           Subclass 29.04 indent level is 3 Voltage or current detector
[List of Patents for class 379 subclass 29.05]  29.05           Subclass 29.05 indent level is 3 Metallic loop testing
[List of Patents for class 379 subclass 29.06]  29.06           Subclass 29.06 indent level is 3 By dialing back the calling terminal
[List of Patents for class 379 subclass 29.07]  29.07           Subclass 29.07 indent level is 3 For a fault caused by an off-hook status
[List of Patents for class 379 subclass 29.08]  29.08           Subclass 29.08 indent level is 3 For a fault caused by new added service or equipment (e.g., software compatible)
[List of Patents for class 379 subclass 29.09]  29.09           Subclass 29.09 indent level is 3 With historical operating information database
[List of Patents for class 379 subclass 29.1]  29.1           Subclass 29.1 indent level is 3 Visual output (e.g., printing, displaying)
[List of Patents for class 379 subclass 29.11]  29.11           Subclass 29.11 indent level is 3 Having telephone maintenance termination unit (e.g., MTU)
[List of Patents for class 379 subclass 30]  30           Subclass 30 indent level is 2 Loop impedance (e.g., resistance, capacitance)
[List of Patents for class 379 subclass 31]  31           Subclass 31 indent level is 2 Of line signalling generator (e.g., dial, tone code generator)
[List of Patents for class 379 subclass 32.01]  32.01           Subclass 32.01 indent level is 1 Monitoring
[List of Patents for class 379 subclass 32.02]  32.02           Subclass 32.02 indent level is 2 Trunk or long line
[List of Patents for class 379 subclass 32.03]  32.03           Subclass 32.03 indent level is 3 AIN link
[List of Patents for class 379 subclass 32.04]  32.04           Subclass 32.04 indent level is 2 Subscriber line
[List of Patents for class 379 subclass 32.05]  32.05           Subclass 32.05 indent level is 2 Call tracing
[List of Patents for class 379 subclass 33]  33           Subclass 33 indent level is 2 Alarm or emergency (e.g., cut line)
[List of Patents for class 379 subclass 35]  35           Subclass 35 indent level is 2 Listening-in or eavesdropping type
[List of Patents for class 379 subclass 36]  36           FREE CALLING FROM PAYSTATION
[List of Patents for class 379 subclass 37]  37           EMERGENCY OR ALARM COMMUNICATIONS (E.G., WATCHMAN'S CIRCUIT)
[List of Patents for class 379 subclass 38]  38           Subclass 38 indent level is 1 Personal monitoring (e.g., for the ill or infirm)
[List of Patents for class 379 subclass 39]  39           Subclass 39 indent level is 1 Responsive to sensed nonsystem condition
[List of Patents for class 379 subclass 40]  40           Subclass 40 indent level is 2 Automatic dialing
[List of Patents for class 379 subclass 41]  41           Subclass 41 indent level is 2 Transmission of recorded audio message
[List of Patents for class 379 subclass 42]  42           Subclass 42 indent level is 2 Plural conditions
[List of Patents for class 379 subclass 43]  43           Subclass 43 indent level is 2 Fire
[List of Patents for class 379 subclass 44]  44           Subclass 44 indent level is 2 Intrusion
[List of Patents for class 379 subclass 45]  45           Subclass 45 indent level is 1 Central office responsive to emergency call or alarm (e.g., "911", operator position display)
[List of Patents for class 379 subclass 46]  46           Subclass 46 indent level is 1 Called line or station condition responsive (e.g., recall if busy)
[List of Patents for class 379 subclass 47]  47           Subclass 47 indent level is 1 Plural alarms over single line
[List of Patents for class 379 subclass 48]  48           Subclass 48 indent level is 1 Announcement or alarm received at terminal station (e.g., "butt-in", alarm)
[List of Patents for class 379 subclass 49]  49           Subclass 49 indent level is 1 Central station with plural substations
[List of Patents for class 379 subclass 50]  50           Subclass 50 indent level is 1 By pulse or digital signal
[List of Patents for class 379 subclass 51]  51           Subclass 51 indent level is 1 With automatic dialing or transmission of recorded audio message
[List of Patents for class 379 subclass 52]  52           INCLUDING AID FOR HANDICAPPED USER (E.G., VISUAL, TACTILE, HEARING AID COUPLING)
[List of Patents for class 379 subclass 55.1]  55.1           HAVING NEAR FIELD LINK (E.G., CAPACITIVE, INDUCTIVE)
[List of Patents for class 379 subclass 56.1]  56.1           HAVING LIGHT WAVE OR ULTRASONIC LINK FOR SPEECH OR PAGING SIGNAL
[List of Patents for class 379 subclass 56.2]  56.2           Subclass 56.2 indent level is 1 Including fiber optic link within telephone network
[List of Patents for class 379 subclass 56.3]  56.3           Subclass 56.3 indent level is 1 Including infra-red link with landline telephone network
[List of Patents for class 379 subclass 67.1]  67.1           AUDIO MESSAGE STORAGE, RETRIEVAL, OR SYNTHESIS
[List of Patents for class 379 subclass 68]  68           Subclass 68 indent level is 1 Dynamic audio signal recording or reproduction
[List of Patents for class 379 subclass 69]  69           Subclass 69 indent level is 2 Call originating
[List of Patents for class 379 subclass 70]  70           Subclass 70 indent level is 2 Call intercept or answering
[List of Patents for class 379 subclass 71]  71           Subclass 71 indent level is 3 Consecutive use of recorded phrases or words to form message
[List of Patents for class 379 subclass 72]  72           Subclass 72 indent level is 3 Sequential or repeated announcement during single call initiated cycle
[List of Patents for class 379 subclass 73]  73           Subclass 73 indent level is 3 Plural record carrier channels
[List of Patents for class 379 subclass 74]  74           Subclass 74 indent level is 3 Remote control over telephone line
[List of Patents for class 379 subclass 75]  75           Subclass 75 indent level is 4 Remote dictation
[List of Patents for class 379 subclass 76]  76           Subclass 76 indent level is 4 Announcement selection or replacement
[List of Patents for class 379 subclass 77]  77           Subclass 77 indent level is 4 Control by generated tone
[List of Patents for class 379 subclass 78]  78           Subclass 78 indent level is 3 Acoustic coupling
[List of Patents for class 379 subclass 79]  79           Subclass 79 indent level is 3 With specified call initiated cycle control circuitry
[List of Patents for class 379 subclass 80]  80           Subclass 80 indent level is 4 Voice signal presence responsive
[List of Patents for class 379 subclass 81]  81           Subclass 81 indent level is 4 Call termination responsive (e.g., hang-up)
[List of Patents for class 379 subclass 82]  82           Subclass 82 indent level is 4 Having specified call initiation (e.g., ringing) responsive circuitry
[List of Patents for class 379 subclass 83]  83           Subclass 83 indent level is 4 Structural detail of storage medium drive
[List of Patents for class 379 subclass 84]  84           Subclass 84 indent level is 3 At switching facility (e.g., central office, switchboard)
[List of Patents for class 379 subclass 85]  85           Subclass 85 indent level is 2 Recording of telephone signal during normal operation
[List of Patents for class 379 subclass 86]  86           Subclass 86 indent level is 3 Inductive pickup
[List of Patents for class 379 subclass 87]  87           Subclass 87 indent level is 2 Reproduced signal distributed over telephone line
[List of Patents for class 379 subclass 88.01]  88.01           Subclass 88.01 indent level is 1 Voice activation or recognition
[List of Patents for class 379 subclass 88.02]  88.02           Subclass 88.02 indent level is 2 Voice verification (e.g., voice authorization, voiceprint, etc.)
[List of Patents for class 379 subclass 88.03]  88.03           Subclass 88.03 indent level is 2 Voice dialing
[List of Patents for class 379 subclass 88.04]  88.04           Subclass 88.04 indent level is 2 Voice controlled message management
[List of Patents for class 379 subclass 88.05]  88.05           Subclass 88.05 indent level is 1 Multilingual system or operation
[List of Patents for class 379 subclass 88.06]  88.06           Subclass 88.06 indent level is 2 Language selection
[List of Patents for class 379 subclass 88.07]  88.07           Subclass 88.07 indent level is 1 Digital signal processing (DSP)
[List of Patents for class 379 subclass 88.08]  88.08           Subclass 88.08 indent level is 1 Message signal analysis
[List of Patents for class 379 subclass 88.09]  88.09           Subclass 88.09 indent level is 2 Statistical analysis (e.g., time, date, length of message, etc.)
[List of Patents for class 379 subclass 88.1]  88.1           Subclass 88.1 indent level is 2 Including data compression
[List of Patents for class 379 subclass 88.11]  88.11           Subclass 88.11 indent level is 1 Display of message related information
[List of Patents for class 379 subclass 88.12]  88.12           Subclass 88.12 indent level is 1 Indication or notification of message
[List of Patents for class 379 subclass 88.13]  88.13           Subclass 88.13 indent level is 1 Multimedia system (e.g., voice output combined with fax, video, text, etc.)
[List of Patents for class 379 subclass 88.14]  88.14           Subclass 88.14 indent level is 2 Presentation format conversion
[List of Patents for class 379 subclass 88.15]  88.15           Subclass 88.15 indent level is 2 Pager activation
[List of Patents for class 379 subclass 88.16]  88.16           Subclass 88.16 indent level is 1 Voice message synthesis
[List of Patents for class 379 subclass 88.17]  88.17           Subclass 88.17 indent level is 1 Interaction with an external nontelephone network (e.g., Internet)
[List of Patents for class 379 subclass 88.18]  88.18           Subclass 88.18 indent level is 1 Interacting voice message systems
[List of Patents for class 379 subclass 88.19]  88.19           Subclass 88.19 indent level is 1 Call source identification
[List of Patents for class 379 subclass 88.2]  88.2           Subclass 88.2 indent level is 2 Automatic Number Identification (ANI)
[List of Patents for class 379 subclass 88.21]  88.21           Subclass 88.21 indent level is 2 Caller identification received at substation
[List of Patents for class 379 subclass 88.22]  88.22           Subclass 88.22 indent level is 1 Message management
[List of Patents for class 379 subclass 88.23]  88.23           Subclass 88.23 indent level is 2 Controlled by subscriber or caller
[List of Patents for class 379 subclass 88.24]  88.24           Subclass 88.24 indent level is 3 By generated tone
[List of Patents for class 379 subclass 88.25]  88.25           Subclass 88.25 indent level is 3 Message storage in centralized location (e.g., central office, PBX, etc.)
[List of Patents for class 379 subclass 88.26]  88.26           Subclass 88.26 indent level is 4 Recording voice message from non subscriber caller
[List of Patents for class 379 subclass 88.27]  88.27           Subclass 88.27 indent level is 2 Separate storage for voice and control information
[List of Patents for class 379 subclass 88.28]  88.28           Subclass 88.28 indent level is 2 Solid state memory storage
[List of Patents for class 379 subclass 90.01]  90.01           TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE)
[List of Patents for class 379 subclass 91.01]  91.01           Subclass 91.01 indent level is 1 Credit authorization
[List of Patents for class 379 subclass 91.02]  91.02           Subclass 91.02 indent level is 2 At switching station
[List of Patents for class 379 subclass 92.01]  92.01           Subclass 92.01 indent level is 1 Polling
[List of Patents for class 379 subclass 92.02]  92.02           Subclass 92.02 indent level is 2 Televoting
[List of Patents for class 379 subclass 92.03]  92.03           Subclass 92.03 indent level is 2 Having central station equipment
[List of Patents for class 379 subclass 92.04]  92.04           Subclass 92.04 indent level is 2 Having subscriber station equipment
[List of Patents for class 379 subclass 93.01]  93.01           Subclass 93.01 indent level is 1 Having transmission of a digital message signal over a telephone line
[List of Patents for class 379 subclass 93.02]  93.02           Subclass 93.02 indent level is 2 Access restricting
[List of Patents for class 379 subclass 93.03]  93.03           Subclass 93.03 indent level is 3 Personal identification
[List of Patents for class 379 subclass 93.04]  93.04           Subclass 93.04 indent level is 3 Two or more calls
[List of Patents for class 379 subclass 93.05]  93.05           Subclass 93.05 indent level is 2 Terminal interface circuitry
[List of Patents for class 379 subclass 93.06]  93.06           Subclass 93.06 indent level is 3 Digital
[List of Patents for class 379 subclass 93.07]  93.07           Subclass 93.07 indent level is 3 To plural lines or networks
[List of Patents for class 379 subclass 93.08]  93.08           Subclass 93.08 indent level is 2 Transmission scheme (e.g., compression/decompression, transmission rate)
[List of Patents for class 379 subclass 93.09]  93.09           Subclass 93.09 indent level is 2 Switching between different terminal types (e.g., voice/data switch)
[List of Patents for class 379 subclass 93.11]  93.11           Subclass 93.11 indent level is 3 Among at least three terminal types
[List of Patents for class 379 subclass 93.12]  93.12           Subclass 93.12 indent level is 2 Sales, ordering, or banking system
[List of Patents for class 379 subclass 93.13]  93.13           Subclass 93.13 indent level is 2 Amusement (e.g., game, lottery)
[List of Patents for class 379 subclass 93.14]  93.14           Subclass 93.14 indent level is 2 Having switching station
[List of Patents for class 379 subclass 93.15]  93.15           Subclass 93.15 indent level is 3 Having format conversion
[List of Patents for class 379 subclass 93.17]  93.17           Subclass 93.17 indent level is 2 Having station display
[List of Patents for class 379 subclass 93.18]  93.18           Subclass 93.18 indent level is 3 Having tone code recognition for generating alphanumeric characters
[List of Patents for class 379 subclass 93.19]  93.19           Subclass 93.19 indent level is 3 Having pressure or position sensitive surface (e.g., touch-screen, light pen)
[List of Patents for class 379 subclass 93.21]  93.21           Subclass 93.21 indent level is 3 Having conferencing
[List of Patents for class 379 subclass 93.22]  93.22           Subclass 93.22 indent level is 3 At pay station
[List of Patents for class 379 subclass 93.23]  93.23           Subclass 93.23 indent level is 3 Having user information display (e.g., telephone number, name, address, etc.)
[List of Patents for class 379 subclass 93.24]  93.24           Subclass 93.24 indent level is 3 Having electronic mail
[List of Patents for class 379 subclass 93.25]  93.25           Subclass 93.25 indent level is 3 Having remote database (e.g., videotex system)
[List of Patents for class 379 subclass 93.26]  93.26           Subclass 93.26 indent level is 2 By voice frequency signal (e.g., tone code)
[List of Patents for class 379 subclass 93.27]  93.27           Subclass 93.27 indent level is 3 Alphanumeric
[List of Patents for class 379 subclass 93.28]  93.28           Subclass 93.28 indent level is 3 Modulated audio tone
[List of Patents for class 379 subclass 93.29]  93.29           Subclass 93.29 indent level is 4 Reconfigurable
[List of Patents for class 379 subclass 93.31]  93.31           Subclass 93.31 indent level is 4 Protocol
[List of Patents for class 379 subclass 93.32]  93.32           Subclass 93.32 indent level is 5 Initial setup
[List of Patents for class 379 subclass 93.33]  93.33           Subclass 93.33 indent level is 5 Having adjustable speed
[List of Patents for class 379 subclass 93.34]  93.34           Subclass 93.34 indent level is 5 Having recognition and selection
[List of Patents for class 379 subclass 93.35]  93.35           Subclass 93.35 indent level is 4 Having call-waiting
[List of Patents for class 379 subclass 93.36]  93.36           Subclass 93.36 indent level is 4 Line powered
[List of Patents for class 379 subclass 93.37]  93.37           Subclass 93.37 indent level is 3 Having acoustic link
[List of Patents for class 379 subclass 100.01]  100.01           Subclass 100.01 indent level is 1 To produce visual-graphic copy (e.g., facsimile)
[List of Patents for class 379 subclass 100.02]  100.02           Subclass 100.02 indent level is 2 Having detachable device (e.g., detachable storage medium, scanner)
[List of Patents for class 379 subclass 100.03]  100.03           Subclass 100.03 indent level is 2 Usage system
[List of Patents for class 379 subclass 100.04]  100.04           Subclass 100.04 indent level is 2 Communication charge calculation
[List of Patents for class 379 subclass 100.05]  100.05           Subclass 100.05 indent level is 2 Monitoring
[List of Patents for class 379 subclass 100.06]  100.06           Subclass 100.06 indent level is 2 Communication status notification
[List of Patents for class 379 subclass 100.07]  100.07           Subclass 100.07 indent level is 2 Using mark sheet
[List of Patents for class 379 subclass 100.08]  100.08           Subclass 100.08 indent level is 2 Electronic mailbox
[List of Patents for class 379 subclass 100.09]  100.09           Subclass 100.09 indent level is 2 Relay system
[List of Patents for class 379 subclass 100.11]  100.11           Subclass 100.11 indent level is 2 From a library
[List of Patents for class 379 subclass 100.12]  100.12           Subclass 100.12 indent level is 2 Connection to plural networks or lines
[List of Patents for class 379 subclass 100.13]  100.13           Subclass 100.13 indent level is 2 Format conversion
[List of Patents for class 379 subclass 100.14]  100.14           Subclass 100.14 indent level is 2 Call signal generation (e.g., auto-dial)
[List of Patents for class 379 subclass 100.15]  100.15           Subclass 100.15 indent level is 2 Having switching to other communication modes
[List of Patents for class 379 subclass 100.16]  100.16           Subclass 100.16 indent level is 3 Voice mode
[List of Patents for class 379 subclass 100.17]  100.17           Subclass 100.17 indent level is 2 Transmission scheme
[List of Patents for class 379 subclass 101.01]  101.01           Subclass 101.01 indent level is 1 Audio program distribution
[List of Patents for class 379 subclass 102.01]  102.01           Subclass 102.01 indent level is 1 Remote control
[List of Patents for class 379 subclass 102.02]  102.02           Subclass 102.02 indent level is 2 Communication device
[List of Patents for class 379 subclass 102.03]  102.03           Subclass 102.03 indent level is 3 Entertainmemt appliance (e.g., TV, VCR, radio, etc.)
[List of Patents for class 379 subclass 102.04]  102.04           Subclass 102.04 indent level is 3 Power source
[List of Patents for class 379 subclass 102.05]  102.05           Subclass 102.05 indent level is 2 Of heating, ventilation, air conditioner (e.g., HVAC)
[List of Patents for class 379 subclass 102.06]  102.06           Subclass 102.06 indent level is 2 Of physical entrance or exit lock
[List of Patents for class 379 subclass 102.07]  102.07           Subclass 102.07 indent level is 2 Having indication
[List of Patents for class 379 subclass 106.01]  106.01           Subclass 106.01 indent level is 1 Remote indication over telephone line (e.g., telemetry)
[List of Patents for class 379 subclass 106.02]  106.02           Subclass 106.02 indent level is 2 Patient monitoring
[List of Patents for class 379 subclass 106.03]  106.03           Subclass 106.03 indent level is 2 Meter reading
[List of Patents for class 379 subclass 106.04]  106.04           Subclass 106.04 indent level is 3 Having power supply circuitry
[List of Patents for class 379 subclass 106.05]  106.05           Subclass 106.05 indent level is 3 Having ringing suppression
[List of Patents for class 379 subclass 106.06]  106.06           Subclass 106.06 indent level is 3 Having time window
[List of Patents for class 379 subclass 106.07]  106.07           Subclass 106.07 indent level is 3 Having interrogation signal
[List of Patents for class 379 subclass 106.08]  106.08           Subclass 106.08 indent level is 3 Having line status detection
[List of Patents for class 379 subclass 106.09]  106.09           Subclass 106.09 indent level is 2 Ringing suppression
[List of Patents for class 379 subclass 106.11]  106.11           Subclass 106.11 indent level is 2 Interrogation signal
[List of Patents for class 379 subclass 108.01]  108.01           Subclass 108.01 indent level is 1 Telegraphy
[List of Patents for class 379 subclass 108.02]  108.02           Subclass 108.02 indent level is 2 Over telephone line
[List of Patents for class 379 subclass 110.01]  110.01           COMPOSITE SUBSTATION OR TERMINAL (E.G., HAVING CALCULATOR, RADIO)
[List of Patents for class 379 subclass 111]  111           WITH USAGE MEASUREMENT (E.G., CALL OR TRAFFIC REGISTER)
[List of Patents for class 379 subclass 112.01]  112.01           Subclass 112.01 indent level is 1 Call traffic recording by computer or control processor
[List of Patents for class 379 subclass 112.02]  112.02           Subclass 112.02 indent level is 2 Redundant processor or backup processor
[List of Patents for class 379 subclass 112.03]  112.03           Subclass 112.03 indent level is 2 Estimating blocking probability
[List of Patents for class 379 subclass 112.04]  112.04           Subclass 112.04 indent level is 2 Threshold or limiting control (e.g., gapping control)
[List of Patents for class 379 subclass 112.05]  112.05           Subclass 112.05 indent level is 2 Optimization network configuration
[List of Patents for class 379 subclass 112.06]  112.06           Subclass 112.06 indent level is 2 Generalized statistics about telephone network usage
[List of Patents for class 379 subclass 112.07]  112.07           Subclass 112.07 indent level is 3 Carrier usage data
[List of Patents for class 379 subclass 112.08]  112.08           Subclass 112.08 indent level is 3 Trunk or path usage data
[List of Patents for class 379 subclass 112.09]  112.09           Subclass 112.09 indent level is 3 Specialized exchange
[List of Patents for class 379 subclass 112.1]  112.1           Subclass 112.1 indent level is 3 Traffic rate for overload
[List of Patents for class 379 subclass 114.01]  114.01           Subclass 114.01 indent level is 1 Call charge metering or monitoring
[List of Patents for class 379 subclass 114.02]  114.02           Subclass 114.02 indent level is 2 Least cost
[List of Patents for class 379 subclass 114.03]  114.03           Subclass 114.03 indent level is 2 Billing computing software or program
[List of Patents for class 379 subclass 114.04]  114.04           Subclass 114.04 indent level is 2 Charge error detection
[List of Patents for class 379 subclass 114.05]  114.05           Subclass 114.05 indent level is 2 Special service fees (e.g., customized feature)
[List of Patents for class 379 subclass 114.06]  114.06           Subclass 114.06 indent level is 2 Variable rate
[List of Patents for class 379 subclass 114.07]  114.07           Subclass 114.07 indent level is 3 Bandwidth
[List of Patents for class 379 subclass 114.08]  114.08           Subclass 114.08 indent level is 3 Traffic
[List of Patents for class 379 subclass 114.09]  114.09           Subclass 114.09 indent level is 3 Time controlled
[List of Patents for class 379 subclass 114.1]  114.1           Subclass 114.1 indent level is 2 Incentive billing
[List of Patents for class 379 subclass 114.11]  114.11           Subclass 114.11 indent level is 3 Gaming
[List of Patents for class 379 subclass 114.12]  114.12           Subclass 114.12 indent level is 3 Discount or bargaining
[List of Patents for class 379 subclass 114.13]  114.13           Subclass 114.13 indent level is 3 Advertisement
[List of Patents for class 379 subclass 114.14]  114.14           Subclass 114.14 indent level is 2 Fraud detection or control
[List of Patents for class 379 subclass 114.15]  114.15           Subclass 114.15 indent level is 2 Calling card
[List of Patents for class 379 subclass 114.16]  114.16           Subclass 114.16 indent level is 3 Recharging or replenishing an account or calling card
[List of Patents for class 379 subclass 114.17]  114.17           Subclass 114.17 indent level is 3 Monitoring account or card usage balance
[List of Patents for class 379 subclass 114.18]  114.18           Subclass 114.18 indent level is 3 Having complementary item (e.g., novelty)
[List of Patents for class 379 subclass 114.19]  114.19           Subclass 114.19 indent level is 3 Credit card
[List of Patents for class 379 subclass 114.2]  114.2           Subclass 114.2 indent level is 3 Pre-paid calling account or card
[List of Patents for class 379 subclass 114.21]  114.21           Subclass 114.21 indent level is 2 Redirect billing
[List of Patents for class 379 subclass 114.22]  114.22           Subclass 114.22 indent level is 3 Split billing or cost sharing
[List of Patents for class 379 subclass 114.23]  114.23           Subclass 114.23 indent level is 3 Third party billing
[List of Patents for class 379 subclass 114.24]  114.24           Subclass 114.24 indent level is 3 1-800 billing
[List of Patents for class 379 subclass 114.25]  114.25           Subclass 114.25 indent level is 3 1-900 billing
[List of Patents for class 379 subclass 114.26]  114.26           Subclass 114.26 indent level is 3 Based on unique account code
[List of Patents for class 379 subclass 114.27]  114.27           Subclass 114.27 indent level is 2 Portable number billing
[List of Patents for class 379 subclass 114.28]  114.28           Subclass 114.28 indent level is 2 Advanced intelligent billing network (e.g., a billing service control processor)
[List of Patents for class 379 subclass 114.29]  114.29           Subclass 114.29 indent level is 3 Using more than one advanced intelligent elements (e.g., accessing multiple AIN databases)
[List of Patents for class 379 subclass 115.01]  115.01           Subclass 115.01 indent level is 2 Interexchange billing operation
[List of Patents for class 379 subclass 115.02]  115.02           Subclass 115.02 indent level is 3 Long distance billing
[List of Patents for class 379 subclass 115.03]  115.03           Subclass 115.03 indent level is 3 Interfacing with foreign exchange
[List of Patents for class 379 subclass 116]  116           Subclass 116 indent level is 3 Hardcopy record generating
[List of Patents for class 379 subclass 117]  117           Subclass 117 indent level is 2 Of station on polystation or party line
[List of Patents for class 379 subclass 118]  118           Subclass 118 indent level is 3 Identification of station
[List of Patents for class 379 subclass 119]  119           Subclass 119 indent level is 2 Hardcopy record generating (e.g., ticket printing)
[List of Patents for class 379 subclass 120]  120           Subclass 120 indent level is 3 With line identification or class of service determination
[List of Patents for class 379 subclass 121.01]  121.01           Subclass 121.01 indent level is 2 At local exchange carrier (e.g., central switching office)
[List of Patents for class 379 subclass 121.02]  121.02           Subclass 121.02 indent level is 3 Discount charge rate or billing plan
[List of Patents for class 379 subclass 121.03]  121.03           Subclass 121.03 indent level is 3 Multiple billing account
[List of Patents for class 379 subclass 121.04]  121.04           Subclass 121.04 indent level is 3 Detail of call history and rates database
[List of Patents for class 379 subclass 121.05]  121.05           Subclass 121.05 indent level is 4 Call record modification
[List of Patents for class 379 subclass 121.06]  121.06           Subclass 121.06 indent level is 3 Having network terminating point receiving registration from subscriber terminal
[List of Patents for class 379 subclass 122]  122           Subclass 122 indent level is 3 With display
[List of Patents for class 379 subclass 123]  123           Subclass 123 indent level is 3 Paystation (e.g., escrow control)
[List of Patents for class 379 subclass 124]  124           Subclass 124 indent level is 3 Pulse counting or accumulating (e.g., "message metering")
[List of Patents for class 379 subclass 125]  125           Subclass 125 indent level is 4 Local or zone
[List of Patents for class 379 subclass 126]  126           Subclass 126 indent level is 4 Assembling billing record (e.g., automatic message account (AMA), call detail record (CDR), etc.)
[List of Patents for class 379 subclass 127.01]  127.01           Subclass 127.01 indent level is 5 Having line identification associated with call billing (e.g., automatic number identification (ANI)
[List of Patents for class 379 subclass 127.02]  127.02           Subclass 127.02 indent level is 6 Fraud control or billing restriction
[List of Patents for class 379 subclass 127.03]  127.03           Subclass 127.03 indent level is 6 Billing code or trigger code
[List of Patents for class 379 subclass 127.04]  127.04           Subclass 127.04 indent level is 6 Pricing a call made from different account (e.g., calling card, credit card)
[List of Patents for class 379 subclass 127.05]  127.05           Subclass 127.05 indent level is 6 Billing option selection
[List of Patents for class 379 subclass 127.06]  127.06           Subclass 127.06 indent level is 6 Having terminal identification
[List of Patents for class 379 subclass 128]  128           Subclass 128 indent level is 4 Time of day controlled
[List of Patents for class 379 subclass 129]  129           Subclass 129 indent level is 3 Manually set (e.g., key and lock)
[List of Patents for class 379 subclass 130]  130           Subclass 130 indent level is 2 At subscriber station
[List of Patents for class 379 subclass 131]  131           Subclass 131 indent level is 3 Time controlled
[List of Patents for class 379 subclass 132]  132           Subclass 132 indent level is 4 Paystation (e.g., escrow control)
[List of Patents for class 379 subclass 133]  133           Subclass 133 indent level is 1 Call traffic recording or monitoring
[List of Patents for class 379 subclass 134]  134           Subclass 134 indent level is 2 At central station
[List of Patents for class 379 subclass 135]  135           Subclass 135 indent level is 3 With hardcopy record generation (e.g., ticket printing)
[List of Patents for class 379 subclass 136]  136           Subclass 136 indent level is 3 With display
[List of Patents for class 379 subclass 137]  137           Subclass 137 indent level is 3 Trunk usage (e.g., peg count)
[List of Patents for class 379 subclass 138]  138           Subclass 138 indent level is 4 All trunks busy metering
[List of Patents for class 379 subclass 139]  139           Subclass 139 indent level is 3 Counting the number of completed connections
[List of Patents for class 379 subclass 140]  140           Subclass 140 indent level is 2 At subscriber
[List of Patents for class 379 subclass 141]  141           Subclass 141 indent level is 3 Mechanical register
[List of Patents for class 379 subclass 142.01]  142.01           RECEPTION OF CALLING INFORMATION AT SUBSTATION IN WIRELINE COMMUNICATIONS SYSTEM
[List of Patents for class 379 subclass 142.02]  142.02           Subclass 142.02 indent level is 1 Blocking caller ID transmission
[List of Patents for class 379 subclass 142.03]  142.03           Subclass 142.03 indent level is 2 Using a trigger code
[List of Patents for class 379 subclass 142.04]  142.04           Subclass 142.04 indent level is 1 Extracting call ID from transmitted signal
[List of Patents for class 379 subclass 142.05]  142.05           Subclass 142.05 indent level is 2 Authentication or authorization
[List of Patents for class 379 subclass 142.06]  142.06           Subclass 142.06 indent level is 2 Matching and retrieving stored caller ID information from a database
[List of Patents for class 379 subclass 142.07]  142.07           Subclass 142.07 indent level is 1 Routing an incoming call on multiple lines to a particular appliance (e.g., facsimile, computer, or telephone)
[List of Patents for class 379 subclass 142.08]  142.08           Subclass 142.08 indent level is 1 Call waiting associated with caller ID information
[List of Patents for class 379 subclass 142.09]  142.09           Subclass 142.09 indent level is 1 Non-assigned telephone number indication
[List of Patents for class 379 subclass 142.1]  142.1           Subclass 142.1 indent level is 1 Caller location indication (e.g., city, state, etc.)
[List of Patents for class 379 subclass 142.11]  142.11           Subclass 142.11 indent level is 1 Caller local time indication
[List of Patents for class 379 subclass 142.12]  142.12           Subclass 142.12 indent level is 1 Including master-slave modules, parent-child terminals, or controller-adjunct units
[List of Patents for class 379 subclass 142.13]  142.13           Subclass 142.13 indent level is 1 Adaptive module coupled to telephone line or telephone device
[List of Patents for class 379 subclass 142.14]  142.14           Subclass 142.14 indent level is 2 Format conversion
[List of Patents for class 379 subclass 142.15]  142.15           Subclass 142.15 indent level is 1 Connecting to an external information processing terminal (e.g., computer)
[List of Patents for class 379 subclass 142.16]  142.16           Subclass 142.16 indent level is 1 Having broadband premise equipment (e.g., TV)
[List of Patents for class 379 subclass 142.17]  142.17           Subclass 142.17 indent level is 1 Having display unit
[List of Patents for class 379 subclass 142.18]  142.18           Subclass 142.18 indent level is 1 Including DTMF signal
[List of Patents for class 379 subclass 143]  143           WITH CHECK OPERATED CONTROL (E.G., PAYSTATION)
[List of Patents for class 379 subclass 144.01]  144.01           Subclass 144.01 indent level is 1 Other than coin
[List of Patents for class 379 subclass 144.02]  144.02           Subclass 144.02 indent level is 2 Collect calling from payphone
[List of Patents for class 379 subclass 144.03]  144.03           Subclass 144.03 indent level is 2 Fraud detection in payphone
[List of Patents for class 379 subclass 144.04]  144.04           Subclass 144.04 indent level is 2 Card reader
[List of Patents for class 379 subclass 144.05]  144.05           Subclass 144.05 indent level is 2 Payphone service associated or integrated with other communication device (e.g., computer, fax, etc.)
[List of Patents for class 379 subclass 144.06]  144.06           Subclass 144.06 indent level is 2 Special circuitry for processing accounting data
[List of Patents for class 379 subclass 144.07]  144.07           Subclass 144.07 indent level is 2 Information message notification at paystation
[List of Patents for class 379 subclass 144.08]  144.08           Subclass 144.08 indent level is 3 Visual display
[List of Patents for class 379 subclass 145]  145           Subclass 145 indent level is 1 Fraud or interference prevention
[List of Patents for class 379 subclass 146]  146           Subclass 146 indent level is 1 Coin signalling or control
[List of Patents for class 379 subclass 147]  147           Subclass 147 indent level is 2 Coin box audit or totalizer
[List of Patents for class 379 subclass 148]  148           Subclass 148 indent level is 2 Denomination
[List of Patents for class 379 subclass 149]  149           Subclass 149 indent level is 2 Post-pay coin collection
[List of Patents for class 379 subclass 150]  150           Subclass 150 indent level is 2 Coin disposition (i.e., return or collection)
[List of Patents for class 379 subclass 151]  151           Subclass 151 indent level is 3 Upon connection to called station
[List of Patents for class 379 subclass 152]  152           Subclass 152 indent level is 3 Magnet, electromagnet, or relay controlled from central office
[List of Patents for class 379 subclass 153]  153           Subclass 153 indent level is 3 Paystation (e.g., controlled by refund key)
[List of Patents for class 379 subclass 154]  154           Subclass 154 indent level is 1 At central office
[List of Patents for class 379 subclass 155]  155           Subclass 155 indent level is 1 At terminal station (e.g., coin paystation)
[List of Patents for class 379 subclass 156]  156           MULTI-LINE OR KEY SUBSTATION SYSTEM WITH SELECTIVE SWITCHING AND CENTRAL SWITCHING OFFICE CONNECTION
[List of Patents for class 379 subclass 157]  157           Subclass 157 indent level is 1 With special service
[List of Patents for class 379 subclass 158]  158           Subclass 158 indent level is 2 Conferencing
[List of Patents for class 379 subclass 159]  159           Subclass 159 indent level is 1 With intercom system
[List of Patents for class 379 subclass 160]  160           Subclass 160 indent level is 2 With connection of intercom station to subscriber line
[List of Patents for class 379 subclass 161]  161           Subclass 161 indent level is 1 With exclusion or priority feature (e.g., lockout or privacy)
[List of Patents for class 379 subclass 162]  162           Subclass 162 indent level is 1 Detail of hold circuitry
[List of Patents for class 379 subclass 163]  163           Subclass 163 indent level is 2 Electronic
[List of Patents for class 379 subclass 164]  164           Subclass 164 indent level is 1 Line status indication or call alerting
[List of Patents for class 379 subclass 165]  165           Subclass 165 indent level is 1 Switching or supervision feature (e.g., common control, digital)
[List of Patents for class 379 subclass 166]  166           Subclass 166 indent level is 1 Detail of line circuit or line card
[List of Patents for class 379 subclass 167.01]  167.01           PRIVATE (E.G., HOUSE OR INTERCOM) OR SINGLE LINE SYSTEM
[List of Patents for class 379 subclass 167.02]  167.02           Subclass 167.02 indent level is 1 At collective house
[List of Patents for class 379 subclass 167.03]  167.03           Subclass 167.03 indent level is 1 At booth (e.g., at theater, gas station, etc.)
[List of Patents for class 379 subclass 167.04]  167.04           Subclass 167.04 indent level is 2 Having intercom switch
[List of Patents for class 379 subclass 167.05]  167.05           Subclass 167.05 indent level is 1 Doorbell system
[List of Patents for class 379 subclass 167.06]  167.06           Subclass 167.06 indent level is 2 Having access code
[List of Patents for class 379 subclass 167.07]  167.07           Subclass 167.07 indent level is 2 Having remote controlling station (e.g., gate guard or attendant)
[List of Patents for class 379 subclass 167.08]  167.08           Subclass 167.08 indent level is 2 Call addressing or announcing
[List of Patents for class 379 subclass 167.11]  167.11           Subclass 167.11 indent level is 2 Having connection to telephone line
[List of Patents for class 379 subclass 167.12]  167.12           Subclass 167.12 indent level is 2 Having display
[List of Patents for class 379 subclass 167.13]  167.13           Subclass 167.13 indent level is 1 Having telephone adaptor system
[List of Patents for class 379 subclass 167.14]  167.14           Subclass 167.14 indent level is 1 Two-way voice channel
[List of Patents for class 379 subclass 167.15]  167.15           Subclass 167.15 indent level is 1 Having transducer circuitry
[List of Patents for class 379 subclass 168]  168           Subclass 168 indent level is 1 Lockout
[List of Patents for class 379 subclass 169]  169           Subclass 169 indent level is 2 Central power source
[List of Patents for class 379 subclass 170]  170           Subclass 170 indent level is 1 With paging
[List of Patents for class 379 subclass 171]  171           Subclass 171 indent level is 1 Having plural stations with selective calling (e.g., master)
[List of Patents for class 379 subclass 172]  172           Subclass 172 indent level is 2 With call addressing
[List of Patents for class 379 subclass 173]  173           Subclass 173 indent level is 1 With call addressing
[List of Patents for class 379 subclass 174]  174           Subclass 174 indent level is 1 Including body or apparel supported terminal (e.g., headgear)
[List of Patents for class 379 subclass 175]  175           Subclass 175 indent level is 2 For underwater use (e.g., in diver's suit)
[List of Patents for class 379 subclass 176]  176           Subclass 176 indent level is 1 With central power source
[List of Patents for class 379 subclass 177]  177           POLYSTATION LINE SYSTEM (I.E., PARTY LINE)
[List of Patents for class 379 subclass 178]  178           Subclass 178 indent level is 1 Revertive call
[List of Patents for class 379 subclass 179]  179           Subclass 179 indent level is 1 Call alerting (e.g., ringing)
[List of Patents for class 379 subclass 180]  180           Subclass 180 indent level is 2 Full selective or tuned (e.g., harmonic)
[List of Patents for class 379 subclass 181]  181           Subclass 181 indent level is 2 Semi-selective (e.g., line side, polarized)
[List of Patents for class 379 subclass 182]  182           Subclass 182 indent level is 1 Automatic or unattended
[List of Patents for class 379 subclass 183]  183           Subclass 183 indent level is 2 Station identification
[List of Patents for class 379 subclass 184]  184           Subclass 184 indent level is 2 Lockout
[List of Patents for class 379 subclass 185]  185           Subclass 185 indent level is 1 Portable or mobile
[List of Patents for class 379 subclass 186]  186           Subclass 186 indent level is 1 Central power source
[List of Patents for class 379 subclass 187]  187           Subclass 187 indent level is 1 Connected to central office
[List of Patents for class 379 subclass 188]  188           CALL OR TERMINAL ACCESS ALARM OR CONTROL
[List of Patents for class 379 subclass 189]  189           Subclass 189 indent level is 1 Fraud or improper use mitigating or indication (e.g., "blue box", "black box")
[List of Patents for class 379 subclass 190]  190           Subclass 190 indent level is 1 Time out
[List of Patents for class 379 subclass 191]  191           Subclass 191 indent level is 2 At switching center
[List of Patents for class 379 subclass 192]  192           Subclass 192 indent level is 3 Of call duration (e.g., conversation timer)
[List of Patents for class 379 subclass 193]  193           Subclass 193 indent level is 3 Of specific equipment
[List of Patents for class 379 subclass 194]  194           Subclass 194 indent level is 1 Lockout or double use signalling
[List of Patents for class 379 subclass 195]  195           Subclass 195 indent level is 2 In automatic system
[List of Patents for class 379 subclass 196]  196           Subclass 196 indent level is 1 At switching center
[List of Patents for class 379 subclass 197]  197           Subclass 197 indent level is 2 Central office
[List of Patents for class 379 subclass 198]  198           Subclass 198 indent level is 2 PBX
[List of Patents for class 379 subclass 199]  199           Subclass 199 indent level is 1 At substation
[List of Patents for class 379 subclass 200]  200           Subclass 200 indent level is 2 Restrictive dialing circuit
[List of Patents for class 379 subclass 201.01]  201.01           SPECIAL SERVICES
[List of Patents for class 379 subclass 201.02]  201.02           Subclass 201.02 indent level is 1 Service profile (e.g., calling service)
[List of Patents for class 379 subclass 201.03]  201.03           Subclass 201.03 indent level is 2 Creation of service (e.g., using object oriented programming, primitive, function)
[List of Patents for class 379 subclass 201.04]  201.04           Subclass 201.04 indent level is 2 Display arrangement
[List of Patents for class 379 subclass 201.05]  201.05           Subclass 201.05 indent level is 2 Distribution of service (e.g., downloading, uploading)
[List of Patents for class 379 subclass 201.06]  201.06           Subclass 201.06 indent level is 1 Locating using diverse technology (e.g., using infrared badge, sensor, card reader)
[List of Patents for class 379 subclass 201.07]  201.07           Subclass 201.07 indent level is 2 Called party
[List of Patents for class 379 subclass 201.08]  201.08           Subclass 201.08 indent level is 2 Calling party
[List of Patents for class 379 subclass 201.09]  201.09           Subclass 201.09 indent level is 2 Object
[List of Patents for class 379 subclass 201.1]  201.1           Subclass 201.1 indent level is 2 Detecting presence or absence of party or object
[List of Patents for class 379 subclass 201.11]  201.11           Subclass 201.11 indent level is 1 Anonymous party (e.g., protection of called or calling party's identity, privacy)
[List of Patents for class 379 subclass 201.12]  201.12           Subclass 201.12 indent level is 1 Provisioning
[List of Patents for class 379 subclass 202.01]  202.01           Subclass 202.01 indent level is 1 Conferencing
[List of Patents for class 379 subclass 203.01]  203.01           Subclass 203.01 indent level is 2 Operator control
[List of Patents for class 379 subclass 204.01]  204.01           Subclass 204.01 indent level is 2 Subscriber control
[List of Patents for class 379 subclass 205.01]  205.01           Subclass 205.01 indent level is 3 Conferencing initiation by single calling station
[List of Patents for class 379 subclass 206.01]  206.01           Subclass 206.01 indent level is 2 At substation
[List of Patents for class 379 subclass 207.01]  207.01           Subclass 207.01 indent level is 1 Three-way calling
[List of Patents for class 379 subclass 207.02]  207.02           Subclass 207.02 indent level is 1 Service trigger (activation or deactivation)
[List of Patents for class 379 subclass 207.03]  207.03           Subclass 207.03 indent level is 2 Time (e.g., time of day, expiration of time period, time zone, date)
[List of Patents for class 379 subclass 207.04]  207.04           Subclass 207.04 indent level is 2 Line or loop condition
[List of Patents for class 379 subclass 207.05]  207.05           Subclass 207.05 indent level is 3 Busy signal (e.g., off hook)
[List of Patents for class 379 subclass 207.06]  207.06           Subclass 207.06 indent level is 3 Transition from off-hook to on-hook (e.g., busy to idle, hook flash)
[List of Patents for class 379 subclass 207.07]  207.07           Subclass 207.07 indent level is 3 Transition from on-hook to off-hook (e.g., idle to busy)
[List of Patents for class 379 subclass 207.08]  207.08           Subclass 207.08 indent level is 3 No answer (e.g., ringing signal, on-hook, idle)
[List of Patents for class 379 subclass 207.09]  207.09           Subclass 207.09 indent level is 4 Number of rings
[List of Patents for class 379 subclass 207.1]  207.1           Subclass 207.1 indent level is 4 Expiration of predetermined time period
[List of Patents for class 379 subclass 207.11]  207.11           Subclass 207.11 indent level is 2 Service access code
[List of Patents for class 379 subclass 207.12]  207.12           Subclass 207.12 indent level is 2 Party location
[List of Patents for class 379 subclass 207.13]  207.13           Subclass 207.13 indent level is 2 Party identification or validation (e.g., personal identification number (PIN))
[List of Patents for class 379 subclass 207.14]  207.14           Subclass 207.14 indent level is 2 Dialed number identification service (DNIS)
[List of Patents for class 379 subclass 207.15]  207.15           Subclass 207.15 indent level is 2 Automatic number identification or calling number identification (ANI or CLID)
[List of Patents for class 379 subclass 207.16]  207.16           Subclass 207.16 indent level is 2 Ringing signal (e.g. having a predetermined cadence or distinctive ring)
[List of Patents for class 379 subclass 208.01]  208.01           Subclass 208.01 indent level is 1 Priority override (e.g., butt-in)
[List of Patents for class 379 subclass 209.01]  209.01           Subclass 209.01 indent level is 1 Repetitive call attempts (e.g., camp-on-busy, retry)
[List of Patents for class 379 subclass 210.01]  210.01           Subclass 210.01 indent level is 1 Reserved call (e.g., return call, call back, scheduled call, reestablished call)
[List of Patents for class 379 subclass 210.02]  210.02           Subclass 210.02 indent level is 1 Call blocking
[List of Patents for class 379 subclass 210.03]  210.03           Subclass 210.03 indent level is 2 Call from anonymous caller
[List of Patents for class 379 subclass 211.01]  211.01           Subclass 211.01 indent level is 1 Call diversion (e.g., call capture)
[List of Patents for class 379 subclass 211.02]  211.02           Subclass 211.02 indent level is 2 Call forwarding
[List of Patents for class 379 subclass 211.03]  211.03           Subclass 211.03 indent level is 3 Sequential ringing
[List of Patents for class 379 subclass 211.04]  211.04           Subclass 211.04 indent level is 3 Simultaneous ringing
[List of Patents for class 379 subclass 211.05]  211.05           Subclass 211.05 indent level is 3 Smart card
[List of Patents for class 379 subclass 212.01]  212.01           Subclass 212.01 indent level is 2 Call transfer
[List of Patents for class 379 subclass 213.01]  213.01           Subclass 213.01 indent level is 2 Intercept (e.g., dead or changed number)
[List of Patents for class 379 subclass 214.01]  214.01           Subclass 214.01 indent level is 2 Secretarial or answering service
[List of Patents for class 379 subclass 215.01]  215.01           Subclass 215.01 indent level is 1 Call Waiting
[List of Patents for class 379 subclass 216.01]  216.01           Subclass 216.01 indent level is 1 Abbreviated dialing or direct call (e.g., hot line)
[List of Patents for class 379 subclass 217.01]  217.01           Subclass 217.01 indent level is 1 Audible paging
[List of Patents for class 379 subclass 218.01]  218.01           Subclass 218.01 indent level is 1 Automatic directory service (e.g., on-line)
[List of Patents for class 379 subclass 218.02]  218.02           Subclass 218.02 indent level is 1 Performed by operator (e.g., butt-in, busy verification)
[List of Patents for class 379 subclass 219]  219           PLURAL EXCHANGE NETWORK OR INTERCONNECTION
[List of Patents for class 379 subclass 220.01]  220.01           Subclass 220.01 indent level is 1 With interexchange network routing
[List of Patents for class 379 subclass 221.01]  221.01           Subclass 221.01 indent level is 2 Alternate routing
[List of Patents for class 379 subclass 221.02]  221.02           Subclass 221.02 indent level is 3 Service provider selection (e.g., local or long distance, primary and alternate carriers)
[List of Patents for class 379 subclass 221.03]  221.03           Subclass 221.03 indent level is 3 Failure (e.g., disaster, overload, blockage)
[List of Patents for class 379 subclass 221.04]  221.04           Subclass 221.04 indent level is 4 Restoration (e.g., backup, recovery)
[List of Patents for class 379 subclass 221.05]  221.05           Subclass 221.05 indent level is 2 Based upon historical data
[List of Patents for class 379 subclass 221.06]  221.06           Subclass 221.06 indent level is 2 Algorithm (e.g., software, computer program)
[List of Patents for class 379 subclass 221.07]  221.07           Subclass 221.07 indent level is 3 Parameter optimization or enhancement (e.g., capacity or bandwidth)
[List of Patents for class 379 subclass 221.08]  221.08           Subclass 221.08 indent level is 2 Advanced intelligent network (AIN)
[List of Patents for class 379 subclass 221.09]  221.09           Subclass 221.09 indent level is 3 Service control point (SCP, ISCP, external database)
[List of Patents for class 379 subclass 221.1]  221.1           Subclass 221.1 indent level is 3 Signal transfer point (STP, ISTP)
[List of Patents for class 379 subclass 221.11]  221.11           Subclass 221.11 indent level is 3 Adjunct or intelligent peripheral (IP)
[List of Patents for class 379 subclass 221.12]  221.12           Subclass 221.12 indent level is 3 Service switching point (SSP)
[List of Patents for class 379 subclass 221.13]  221.13           Subclass 221.13 indent level is 2 Local number portability (LNP)
[List of Patents for class 379 subclass 221.14]  221.14           Subclass 221.14 indent level is 1 Routing parameter (e.g., area code, address, service provider identifier)
[List of Patents for class 379 subclass 221.15]  221.15           Subclass 221.15 indent level is 1 Connection call model (e.g., virtual network, displayed models)
[List of Patents for class 379 subclass 222]  222           Subclass 222 indent level is 1 Toll center
[List of Patents for class 379 subclass 223]  223           Subclass 223 indent level is 2 With operator assistance
[List of Patents for class 379 subclass 224]  224           Subclass 224 indent level is 1 Tandem switching center
[List of Patents for class 379 subclass 225]  225           Subclass 225 indent level is 1 Multi-PBX interconnection
[List of Patents for class 379 subclass 226]  226           Subclass 226 indent level is 1 Having a manual exchange
[List of Patents for class 379 subclass 227]  227           Subclass 227 indent level is 2 With an automatic exchange
[List of Patents for class 379 subclass 228]  228           Subclass 228 indent level is 3 Having signalling to operator
[List of Patents for class 379 subclass 229]  229           Subclass 229 indent level is 1 Interexchange signalling
[List of Patents for class 379 subclass 230]  230           Subclass 230 indent level is 2 Signalling path distinct from trunk (e.g., CCIS)
[List of Patents for class 379 subclass 231]  231           Subclass 231 indent level is 2 Central office-to-PBX signalling
[List of Patents for class 379 subclass 232]  232           Subclass 232 indent level is 3 PBX trunk groups
[List of Patents for class 379 subclass 233]  233           Subclass 233 indent level is 3 Direct inward dialing
[List of Patents for class 379 subclass 234]  234           Subclass 234 indent level is 2 PBX to central office signalling (e.g., direct outward dialing)
[List of Patents for class 379 subclass 235]  235           Subclass 235 indent level is 2 Voice frequency signalling over trunk
[List of Patents for class 379 subclass 236]  236           Subclass 236 indent level is 2 D.C. signalling over trunk
[List of Patents for class 379 subclass 237]  237           Subclass 237 indent level is 3 Pulse or digital signalling
[List of Patents for class 379 subclass 238]  238           Subclass 238 indent level is 4 Having signalling repeater
[List of Patents for class 379 subclass 239]  239           Subclass 239 indent level is 4 Using register-sender
[List of Patents for class 379 subclass 240]  240           Subclass 240 indent level is 2 Interexchange trunk circuit
[List of Patents for class 379 subclass 241]  241           Subclass 241 indent level is 3 Glare or simultaneous seizure mitigation
[List of Patents for class 379 subclass 242]  242           CENTRALIZED SWITCHING SYSTEM
[List of Patents for class 379 subclass 243]  243           Subclass 243 indent level is 1 Class of service determination or transmission
[List of Patents for class 379 subclass 244]  244           Subclass 244 indent level is 2 In common control system
[List of Patents for class 379 subclass 245]  245           Subclass 245 indent level is 1 Identification
[List of Patents for class 379 subclass 246]  246           Subclass 246 indent level is 2 Of line or trunk
[List of Patents for class 379 subclass 247]  247           Subclass 247 indent level is 3 With display
[List of Patents for class 379 subclass 248]  248           Subclass 248 indent level is 3 Using matrix
[List of Patents for class 379 subclass 249]  249           Subclass 249 indent level is 3 For nuisance call mitigation
[List of Patents for class 379 subclass 250]  250           Subclass 250 indent level is 1 Four-wire switching
[List of Patents for class 379 subclass 251]  251           Subclass 251 indent level is 1 With generating of call associated substation signal
[List of Patents for class 379 subclass 252]  252           Subclass 252 indent level is 2 For alerting signal at called station (e.g., ringing)
[List of Patents for class 379 subclass 253]  253           Subclass 253 indent level is 3 Electronic
[List of Patents for class 379 subclass 254]  254           Subclass 254 indent level is 3 Associated with connector
[List of Patents for class 379 subclass 255]  255           Subclass 255 indent level is 3 With interrupter
[List of Patents for class 379 subclass 256]  256           Subclass 256 indent level is 2 Having automatic or through ringing
[List of Patents for class 379 subclass 257]  257           Subclass 257 indent level is 2 For calling station (e.g., status or progress tones)
[List of Patents for class 379 subclass 265.01]  265.01           Subclass 265.01 indent level is 1 Call distribution to operator
[List of Patents for class 379 subclass 265.02]  265.02           Subclass 265.02 indent level is 2 Automatic call distributor (ACD) system
[List of Patents for class 379 subclass 265.03]  265.03           Subclass 265.03 indent level is 3 Reporting status (e.g., supervisory reporting)
[List of Patents for class 379 subclass 265.04]  265.04           Subclass 265.04 indent level is 4 Log-on or log-off of agent
[List of Patents for class 379 subclass 265.05]  265.05           Subclass 265.05 indent level is 4 Agent assignment (e.g., allocation of agent's time to a specific task)
[List of Patents for class 379 subclass 265.06]  265.06           Subclass 265.06 indent level is 4 Monitoring agent performance (e.g., quality of agent's performance)
[List of Patents for class 379 subclass 265.07]  265.07           Subclass 265.07 indent level is 5 Speech of agent or customer (e.g., talk time)
[List of Patents for class 379 subclass 265.08]  265.08           Subclass 265.08 indent level is 5 Average call length
[List of Patents for class 379 subclass 265.09]  265.09           Subclass 265.09 indent level is 3 Having a multimedia feature (e.g., connected to Internet, E-mail, etc.)
[List of Patents for class 379 subclass 265.1]  265.1           Subclass 265.1 indent level is 3 Predictive (e.g., anticipating next available agent)
[List of Patents for class 379 subclass 265.11]  265.11           Subclass 265.11 indent level is 3 Routing to available agent
[List of Patents for class 379 subclass 265.12]  265.12           Subclass 265.12 indent level is 4 Based on agent's skill (e.g., language spoken by agent)
[List of Patents for class 379 subclass 265.13]  265.13           Subclass 265.13 indent level is 4 Based on type of call
[List of Patents for class 379 subclass 265.14]  265.14           Subclass 265.14 indent level is 4 Based on time (e.g., longest waiting agent)
[List of Patents for class 379 subclass 266.01]  266.01           Subclass 266.01 indent level is 3 Call or agent queuing
[List of Patents for class 379 subclass 266.02]  266.02           Subclass 266.02 indent level is 4 Based on type of call
[List of Patents for class 379 subclass 266.03]  266.03           Subclass 266.03 indent level is 4 Based on time (e.g., age of queued call, time of day, date)
[List of Patents for class 379 subclass 266.04]  266.04           Subclass 266.04 indent level is 4 Overflow (e.g., queue-to-queue, ACD-to-ACD)
[List of Patents for class 379 subclass 266.05]  266.05           Subclass 266.05 indent level is 4 Split
[List of Patents for class 379 subclass 266.06]  266.06           Subclass 266.06 indent level is 4 Estimating or reporting waiting time
[List of Patents for class 379 subclass 266.07]  266.07           Subclass 266.07 indent level is 3 Call campaign (e.g., script, application, inbound/outbound balancing)
[List of Patents for class 379 subclass 266.08]  266.08           Subclass 266.08 indent level is 4 Predictive algorithm
[List of Patents for class 379 subclass 266.09]  266.09           Subclass 266.09 indent level is 3 Home agent
[List of Patents for class 379 subclass 266.1]  266.1           Subclass 266.1 indent level is 3 Call record
[List of Patents for class 379 subclass 258]  258           Subclass 258 indent level is 1 Switching controlled in response to called station addressing signal
[List of Patents for class 379 subclass 259]  259           Subclass 259 indent level is 2 Including deflected electron beam switching device or mechanical or optical switching control (e.g., fluidic)
[List of Patents for class 379 subclass 260]  260           Subclass 260 indent level is 2 With operator position or completion of call (e.g., dial "O", semiautomatic)
[List of Patents for class 379 subclass 261]  261           Subclass 261 indent level is 3 Operator controlled register-sender
[List of Patents for class 379 subclass 262]  262           Subclass 262 indent level is 3 Call extension by operator
[List of Patents for class 379 subclass 263]  263           Subclass 263 indent level is 4 With call indicator or announcer
[List of Patents for class 379 subclass 264]  264           Subclass 264 indent level is 4 A to B operator
[List of Patents for class 379 subclass 267]  267           Subclass 267 indent level is 3 Operator's console
[List of Patents for class 379 subclass 268]  268           Subclass 268 indent level is 2 Having shared or common switching control
[List of Patents for class 379 subclass 269]  269           Subclass 269 indent level is 3 Distributed control
[List of Patents for class 379 subclass 270]  270           Subclass 270 indent level is 3 In-stage or interstage scanning (e.g., link scanning)
[List of Patents for class 379 subclass 271]  271           Subclass 271 indent level is 3 Having multistage switching
[List of Patents for class 379 subclass 272]  272           Subclass 272 indent level is 4 Path selection or routing
[List of Patents for class 379 subclass 273]  273           Subclass 273 indent level is 5 Alternate routing
[List of Patents for class 379 subclass 274]  274           Subclass 274 indent level is 6 With busy or idle test
[List of Patents for class 379 subclass 275]  275           Subclass 275 indent level is 5 Including marking circuit
[List of Patents for class 379 subclass 276]  276           Subclass 276 indent level is 6 End-to-end marking (e.g., self-seeking)
[List of Patents for class 379 subclass 277]  277           Subclass 277 indent level is 5 With busy or idle test
[List of Patents for class 379 subclass 278]  278           Subclass 278 indent level is 4 Interstage junctor or "trunk"
[List of Patents for class 379 subclass 279]  279           Subclass 279 indent level is 3 Control reliability (e.g., redundancy)
[List of Patents for class 379 subclass 280]  280           Subclass 280 indent level is 3 Including registering or storing device for call address signal
[List of Patents for class 379 subclass 281]  281           Subclass 281 indent level is 4 Conversion between dial pulse and voice frequency signal
[List of Patents for class 379 subclass 282]  282           Subclass 282 indent level is 4 Voice frequency receiver
[List of Patents for class 379 subclass 283]  283           Subclass 283 indent level is 5 Dual tone multifrequency (DTMF) receiver
[List of Patents for class 379 subclass 284]  284           Subclass 284 indent level is 4 With processor
[List of Patents for class 379 subclass 285]  285           Subclass 285 indent level is 4 With magnetic memory
[List of Patents for class 379 subclass 286]  286           Subclass 286 indent level is 4 Signal processing (e.g., dial pulse analysis)
[List of Patents for class 379 subclass 287]  287           Subclass 287 indent level is 4 Electronic
[List of Patents for class 379 subclass 288]  288           Subclass 288 indent level is 4 Register-sender
[List of Patents for class 379 subclass 289]  289           Subclass 289 indent level is 3 Translator
[List of Patents for class 379 subclass 290]  290           Subclass 290 indent level is 3 With time division of control or supervisory signals
[List of Patents for class 379 subclass 291]  291           Subclass 291 indent level is 3 With detail of crosspoint switching structure (e.g., crossbar)
[List of Patents for class 379 subclass 292]  292           Subclass 292 indent level is 4 Electronic crosspoint (e.g., solid-state)
[List of Patents for class 379 subclass 293]  293           Subclass 293 indent level is 2 Having line finder
[List of Patents for class 379 subclass 294]  294           Subclass 294 indent level is 3 Including electronic element (e.g., tube or semiconductor)
[List of Patents for class 379 subclass 295]  295           Subclass 295 indent level is 3 Plural
[List of Patents for class 379 subclass 296]  296           Subclass 296 indent level is 2 With repeater
[List of Patents for class 379 subclass 297]  297           Subclass 297 indent level is 2 Having specified busy-idle test
[List of Patents for class 379 subclass 298]  298           Subclass 298 indent level is 2 Direct control
[List of Patents for class 379 subclass 299]  299           Subclass 299 indent level is 3 Step-by-step system
[List of Patents for class 379 subclass 300]  300           Subclass 300 indent level is 4 Having plural wiper sets
[List of Patents for class 379 subclass 301]  301           Subclass 301 indent level is 4 Having potential control
[List of Patents for class 379 subclass 302]  302           Subclass 302 indent level is 4 Having rotary switch
[List of Patents for class 379 subclass 303]  303           Subclass 303 indent level is 4 Coordinate system (e.g., X-Y)
[List of Patents for class 379 subclass 304]  304           Subclass 304 indent level is 3 All relay type
[List of Patents for class 379 subclass 305]  305           Subclass 305 indent level is 3 Having motor-driven switch
[List of Patents for class 379 subclass 306]  306           Subclass 306 indent level is 2 With crosspoint switch detail
[List of Patents for class 379 subclass 307]  307           Subclass 307 indent level is 2 With power supply
[List of Patents for class 379 subclass 308]  308           Subclass 308 indent level is 1 Switching apparatus for connecting calling line to operator's position
[List of Patents for class 379 subclass 309]  309           Subclass 309 indent level is 2 Call distribution or queuing
[List of Patents for class 379 subclass 310]  310           Subclass 310 indent level is 1 Divided central (e.g., communication between switchboards)
[List of Patents for class 379 subclass 311]  311           Subclass 311 indent level is 2 Having signalling path feature
[List of Patents for class 379 subclass 312]  312           Subclass 312 indent level is 1 Having multiple answering jacks for multiplied line
[List of Patents for class 379 subclass 313]  313           Subclass 313 indent level is 1 Multiple section switchboard
[List of Patents for class 379 subclass 314]  314           Subclass 314 indent level is 2 Auxiliary (e.g., overflow)
[List of Patents for class 379 subclass 315]  315           Subclass 315 indent level is 1 With line-signal control
[List of Patents for class 379 subclass 316]  316           Subclass 316 indent level is 2 Spring-jack cut-off
[List of Patents for class 379 subclass 317]  317           Subclass 317 indent level is 2 Relay cut-off
[List of Patents for class 379 subclass 318]  318           Subclass 318 indent level is 2 Central power source
[List of Patents for class 379 subclass 319]  319           Subclass 319 indent level is 1 Single switchboard (e.g., cord circuit)
[List of Patents for class 379 subclass 320]  320           Subclass 320 indent level is 2 Switchboard circuit
[List of Patents for class 379 subclass 321]  321           Subclass 321 indent level is 3 Connection to operator's terminal
[List of Patents for class 379 subclass 322]  322           Subclass 322 indent level is 1 Power supply
[List of Patents for class 379 subclass 323]  323           Subclass 323 indent level is 2 Power to switching equipment
[List of Patents for class 379 subclass 324]  324           Subclass 324 indent level is 2 Central power source (e.g., common battery, line current feed)
[List of Patents for class 379 subclass 325]  325           Subclass 325 indent level is 1 Structure of equipment
[List of Patents for class 379 subclass 326]  326           Subclass 326 indent level is 2 Wire or cable distribution
[List of Patents for class 379 subclass 327]  327           Subclass 327 indent level is 3 Main or intermediate distribution frame
[List of Patents for class 379 subclass 328]  328           Subclass 328 indent level is 2 Equipment mounting or support
[List of Patents for class 379 subclass 329]  329           Subclass 329 indent level is 3 Allowing movement of equipment (e.g., movable, modular)
[List of Patents for class 379 subclass 330]  330           Subclass 330 indent level is 2 Housing
[List of Patents for class 379 subclass 331]  331           Subclass 331 indent level is 1 Having protective circuit
[List of Patents for class 379 subclass 332]  332           Subclass 332 indent level is 1 Plug and socket
[List of Patents for class 379 subclass 333]  333           CONCENTRATOR OR TRUNK SELECTOR
[List of Patents for class 379 subclass 334]  334           Subclass 334 indent level is 1 Concentrator-distributor pair (e.g., line concentrator)
[List of Patents for class 379 subclass 335]  335           Subclass 335 indent level is 1 Using crossbar or crosspoint switching
[List of Patents for class 379 subclass 336]  336           Subclass 336 indent level is 1 With magnet, electromagnet, or relay
[List of Patents for class 379 subclass 337]  337           Subclass 337 indent level is 1 With busy-idle test (e.g., idle trunk finder)
[List of Patents for class 379 subclass 338]  338           REPEATER (E.G., VOICE FREQUENCY)
[List of Patents for class 379 subclass 339]  339           Subclass 339 indent level is 1 With signal conversion (e.g., dial to DTMF, analog to PCM)
[List of Patents for class 379 subclass 340]  340           Subclass 340 indent level is 1 Having line length compensation or equalization
[List of Patents for class 379 subclass 341]  341           Subclass 341 indent level is 1 Pulse or tone repeater (e.g., electromechanical relay)
[List of Patents for class 379 subclass 342]  342           Subclass 342 indent level is 2 Electronic (e.g., logic circuitry)
[List of Patents for class 379 subclass 343]  343           Subclass 343 indent level is 1 Controlled by a pilot or reference signal
[List of Patents for class 379 subclass 344]  344           Subclass 344 indent level is 1 Component processes bidirectional signals
[List of Patents for class 379 subclass 345]  345           Subclass 345 indent level is 2 Including two-to-four wire conversion or hybrid circuit
[List of Patents for class 379 subclass 346]  346           Subclass 346 indent level is 1 With frequency discriminator or negative impedance element
[List of Patents for class 379 subclass 347]  347           Subclass 347 indent level is 1 With gain or attenuation control
[List of Patents for class 379 subclass 348]  348           Subclass 348 indent level is 1 Transmission of power to distant repeater
[List of Patents for class 379 subclass 349]  349           Subclass 349 indent level is 1 Having voice frequency transformer
[List of Patents for class 379 subclass 406.01]  406.01           ECHO CANCELLATION OR SUPPRESSION
[List of Patents for class 379 subclass 406.02]  406.02           Subclass 406.02 indent level is 1 Combined diverse function
[List of Patents for class 379 subclass 406.03]  406.03           Subclass 406.03 indent level is 2 Additional signal enhancement (e.g., voice processing or recognition)
[List of Patents for class 379 subclass 406.04]  406.04           Subclass 406.04 indent level is 1 Disable or inhibit function
[List of Patents for class 379 subclass 406.05]  406.05           Subclass 406.05 indent level is 1 Residual echo cancellation
[List of Patents for class 379 subclass 406.06]  406.06           Subclass 406.06 indent level is 1 Using digital signal processing
[List of Patents for class 379 subclass 406.07]  406.07           Subclass 406.07 indent level is 2 Using attenuator
[List of Patents for class 379 subclass 406.08]  406.08           Subclass 406.08 indent level is 2 Adaptive filtering
[List of Patents for class 379 subclass 406.09]  406.09           Subclass 406.09 indent level is 3 Least mean squares (LMS) algorithm
[List of Patents for class 379 subclass 406.1]  406.1           Subclass 406.1 indent level is 3 With training sequence
[List of Patents for class 379 subclass 406.11]  406.11           Subclass 406.11 indent level is 2 Convolution processing
[List of Patents for class 379 subclass 406.12]  406.12           Subclass 406.12 indent level is 2 Frequency domain analysis
[List of Patents for class 379 subclass 406.13]  406.13           Subclass 406.13 indent level is 3 Fourier analysis
[List of Patents for class 379 subclass 406.14]  406.14           Subclass 406.14 indent level is 3 Sub-band analysis
[List of Patents for class 379 subclass 406.15]  406.15           Subclass 406.15 indent level is 2 Additional analog processing
[List of Patents for class 379 subclass 406.16]  406.16           Subclass 406.16 indent level is 1 Having analog variolosser or attenuator
[List of Patents for class 379 subclass 350]  350           SUPERVISORY OR CONTROL LINE SIGNALING
[List of Patents for class 379 subclass 351]  351           Subclass 351 indent level is 1 Signalling integrity protection (e.g., voice signal immunity)
[List of Patents for class 379 subclass 352]  352           Subclass 352 indent level is 1 Substation originated
[List of Patents for class 379 subclass 353]  353           Subclass 353 indent level is 2 Conversion of signal form
[List of Patents for class 379 subclass 354]  354           Subclass 354 indent level is 2 With called number display
[List of Patents for class 379 subclass 355.01]  355.01           Subclass 355.01 indent level is 2 Repertory or abbreviated call signal generation
[List of Patents for class 379 subclass 355.02]  355.02           Subclass 355.02 indent level is 3 Call address signal stored in terminal
[List of Patents for class 379 subclass 355.03]  355.03           Subclass 355.03 indent level is 4 Including terminal other than telephone
[List of Patents for class 379 subclass 355.04]  355.04           Subclass 355.04 indent level is 3 Call address signal stored in network
[List of Patents for class 379 subclass 355.05]  355.05           Subclass 355.05 indent level is 3 Modification of call address signal for abbreviated dialing
[List of Patents for class 379 subclass 355.06]  355.06           Subclass 355.06 indent level is 4 Modification by other than key input
[List of Patents for class 379 subclass 355.07]  355.07           Subclass 355.07 indent level is 4 Including modification of indicia associated with a call address
[List of Patents for class 379 subclass 355.08]  355.08           Subclass 355.08 indent level is 3 Including prefix in the call address signal
[List of Patents for class 379 subclass 355.09]  355.09           Subclass 355.09 indent level is 3 Selection of registered call address signal
[List of Patents for class 379 subclass 355.1]  355.1           Subclass 355.1 indent level is 4 Selection of multiple call address signals
[List of Patents for class 379 subclass 356.01]  356.01           Subclass 356.01 indent level is 3 Including dynamic memory
[List of Patents for class 379 subclass 357.01]  357.01           Subclass 357.01 indent level is 3 Insertable control element or circuitry (e.g., card)
[List of Patents for class 379 subclass 357.02]  357.02           Subclass 357.02 indent level is 4 Personal computer memory card (PCMCIA)
[List of Patents for class 379 subclass 357.03]  357.03           Subclass 357.03 indent level is 3 Acoustical generation
[List of Patents for class 379 subclass 357.04]  357.04           Subclass 357.04 indent level is 3 Circuitry of call signal generator
[List of Patents for class 379 subclass 357.05]  357.05           Subclass 357.05 indent level is 3 Including solid state memory storage
[List of Patents for class 379 subclass 358]  358           Subclass 358 indent level is 3 By motor driven dial rotating device
[List of Patents for class 379 subclass 359]  359           Subclass 359 indent level is 3 Pulse signal generating (e.g., dialing)
[List of Patents for class 379 subclass 360]  360           Subclass 360 indent level is 2 Voice frequency band signalling (e.g., reed devices)
[List of Patents for class 379 subclass 361]  361           Subclass 361 indent level is 3 Electronic (e.g., tone generator)
[List of Patents for class 379 subclass 362]  362           Subclass 362 indent level is 2 Pulse signal generator (e.g., rotary dial)
[List of Patents for class 379 subclass 363]  363           Subclass 363 indent level is 3 Control of motor driven dial rotating device
[List of Patents for class 379 subclass 364]  364           Subclass 364 indent level is 3 With nonrotary actuator (e.g., key or slide type)
[List of Patents for class 379 subclass 365]  365           Subclass 365 indent level is 3 Specified switching contact (e.g., contact spring)
[List of Patents for class 379 subclass 366]  366           Subclass 366 indent level is 3 With detail of dial return mechanism (e.g., driving spring, speed governor)
[List of Patents for class 379 subclass 367]  367           Subclass 367 indent level is 3 Finger wheel or mechanical adjunct (e.g., finger stop)
[List of Patents for class 379 subclass 368]  368           Subclass 368 indent level is 2 Plural-switch number input device (e.g., keypad)
[List of Patents for class 379 subclass 369]  369           Subclass 369 indent level is 2 Detail of mounting of switch pad or dial
[List of Patents for class 379 subclass 370]  370           Subclass 370 indent level is 3 In handset
[List of Patents for class 379 subclass 371]  371           Subclass 371 indent level is 2 Magneto signalling
[List of Patents for class 379 subclass 372]  372           Subclass 372 indent level is 1 Signal reception at substation
[List of Patents for class 379 subclass 373.01]  373.01           Subclass 373.01 indent level is 2 Incoming call alerting
[List of Patents for class 379 subclass 373.02]  373.02           Subclass 373.02 indent level is 3 Distinctive or selective alerting
[List of Patents for class 379 subclass 373.03]  373.03           Subclass 373.03 indent level is 4 Registration of alerting signal in association with incoming signal
[List of Patents for class 379 subclass 373.04]  373.04           Subclass 373.04 indent level is 5 Recording audio for use as the alerting signal
[List of Patents for class 379 subclass 373.05]  373.05           Subclass 373.05 indent level is 4 Directing incoming call to local appliance
[List of Patents for class 379 subclass 374.01]  374.01           Subclass 374.01 indent level is 3 Including musical sound generation
[List of Patents for class 379 subclass 374.02]  374.02           Subclass 374.02 indent level is 3 Including audible message generation
[List of Patents for class 379 subclass 374.03]  374.03           Subclass 374.03 indent level is 3 Alerting by other than sight or sound (e.g., vibration)
[List of Patents for class 379 subclass 375.01]  375.01           Subclass 375.01 indent level is 3 Having electronic call sounder (e.g., tone "ringer")
[List of Patents for class 379 subclass 376.01]  376.01           Subclass 376.01 indent level is 3 Visual indication of incoming call (e.g., LED or light bulb)
[List of Patents for class 379 subclass 376.02]  376.02           Subclass 376.02 indent level is 2 Silencing ring signal
[List of Patents for class 379 subclass 377]  377           Subclass 377 indent level is 1 Using line or loop condition detection (e.g., line circuit)
[List of Patents for class 379 subclass 378]  378           Subclass 378 indent level is 2 With current controlling electromagnetic core device (e.g., Hall-effect device)
[List of Patents for class 379 subclass 379]  379           Subclass 379 indent level is 2 With optical link between line and switching system
[List of Patents for class 379 subclass 380]  380           Subclass 380 indent level is 2 By bridge circuit
[List of Patents for class 379 subclass 381]  381           Subclass 381 indent level is 2 Busy test or make busy
[List of Patents for class 379 subclass 382]  382           Subclass 382 indent level is 2 For ring trip or polarity reversal detection
[List of Patents for class 379 subclass 383]  383           Subclass 383 indent level is 2 Of plural lines
[List of Patents for class 379 subclass 384]  384           Subclass 384 indent level is 3 By scanning
[List of Patents for class 379 subclass 385]  385           Subclass 385 indent level is 2 Relayless
[List of Patents for class 379 subclass 386]  386           Subclass 386 indent level is 1 Signal receiver (e.g., tone decoder)
[List of Patents for class 379 subclass 387.01]  387.01           SUBSTATION OR TERMINAL CIRCUITRY
[List of Patents for class 379 subclass 387.02]  387.02           Subclass 387.02 indent level is 1 Conversion of signal form (e.g., A/D, frequency or phase)
[List of Patents for class 379 subclass 388.01]  388.01           Subclass 388.01 indent level is 1 For loudspeaking terminal
[List of Patents for class 379 subclass 388.02]  388.02           Subclass 388.02 indent level is 2 Speakerphone with build-in microphone
[List of Patents for class 379 subclass 388.03]  388.03           Subclass 388.03 indent level is 3 Automatic gain or volumn (AGC or AVC)
[List of Patents for class 379 subclass 388.04]  388.04           Subclass 388.04 indent level is 2 Voice control of transmission direction
[List of Patents for class 379 subclass 388.05]  388.05           Subclass 388.05 indent level is 3 Voice switching by attenuation/amplification
[List of Patents for class 379 subclass 388.06]  388.06           Subclass 388.06 indent level is 3 Comparing signal level of receiving and transmitting circuits
[List of Patents for class 379 subclass 388.07]  388.07           Subclass 388.07 indent level is 3 Controlling acoustic feedback
[List of Patents for class 379 subclass 390.01]  390.01           Subclass 390.01 indent level is 2 Amplification or attenuation level control
[List of Patents for class 379 subclass 390.02]  390.02           Subclass 390.02 indent level is 3 Filtering (FIR, HPF, Widrow-Hoff, LMS)
[List of Patents for class 379 subclass 390.03]  390.03           Subclass 390.03 indent level is 3 Automatic gain control
[List of Patents for class 379 subclass 390.04]  390.04           Subclass 390.04 indent level is 3 Hybrid circuit
[List of Patents for class 379 subclass 391]  391           Subclass 391 indent level is 1 Sidetone control or hybrid circuit (e.g., induction coil)
[List of Patents for class 379 subclass 392]  392           Subclass 392 indent level is 2 Suppression (e.g., antisidetone)
[List of Patents for class 379 subclass 392.01]  392.01           Subclass 392.01 indent level is 1 Noise suppression
[List of Patents for class 379 subclass 393]  393           Subclass 393 indent level is 1 Hold circuit
[List of Patents for class 379 subclass 394]  394           Subclass 394 indent level is 1 Impedance matching or line equalizing
[List of Patents for class 379 subclass 395]  395           Subclass 395 indent level is 1 Amplifying (e.g., AGC or AVC)
[List of Patents for class 379 subclass 395.01]  395.01           Subclass 395.01 indent level is 1 Power control or detection circuit
[List of Patents for class 379 subclass 396]  396           Subclass 396 indent level is 1 Visual signalling (e.g., lamp)
[List of Patents for class 379 subclass 397]  397           Subclass 397 indent level is 1 Wire distribution
[List of Patents for class 379 subclass 398]  398           LINE EQUALIZATION OR IMPEDANCE MATCHING
[List of Patents for class 379 subclass 399.01]  399.01           SUBSCRIBER LINE OR TRANSMISSION LINE INTERFACE
[List of Patents for class 379 subclass 399.02]  399.02           Subclass 399.02 indent level is 1 Circuitry to provide a coder and decoder function
[List of Patents for class 379 subclass 400]  400           Subclass 400 indent level is 1 For line length compensation
[List of Patents for class 379 subclass 401]  401           Subclass 401 indent level is 2 Voltage boosting circuit
[List of Patents for class 379 subclass 402]  402           Subclass 402 indent level is 1 Hybrid circuit
[List of Patents for class 379 subclass 403]  403           Subclass 403 indent level is 2 With adjustable balance circuit
[List of Patents for class 379 subclass 404]  404           Subclass 404 indent level is 3 Automatic adjustment
[List of Patents for class 379 subclass 405]  405           Subclass 405 indent level is 2 Electronic noninductive
[List of Patents for class 379 subclass 412]  412           Subclass 412 indent level is 1 Protective circuit
[List of Patents for class 379 subclass 413]  413           Subclass 413 indent level is 1 Power supply (e.g., battery feed)
[List of Patents for class 379 subclass 413.01]  413.01           Subclass 413.01 indent level is 2 Circuitry to provide ringing current supply
[List of Patents for class 379 subclass 413.02]  413.02           Subclass 413.02 indent level is 1 Network interface device (NLD)
[List of Patents for class 379 subclass 413.03]  413.03           Subclass 413.03 indent level is 2 Including connection for alternate communication line (e.g., cable)
[List of Patents for class 379 subclass 413.04]  413.04           Subclass 413.04 indent level is 2 Connection block or module
[List of Patents for class 379 subclass 414]  414           TRANSMISSION LINE CONDITIONING
[List of Patents for class 379 subclass 415]  415           Subclass 415 indent level is 1 Reactance neutralizing
[List of Patents for class 379 subclass 416]  416           Subclass 416 indent level is 1 Interference suppression
[List of Patents for class 379 subclass 417]  417           Subclass 417 indent level is 2 Anticrosstalk
[List of Patents for class 379 subclass 418]  418           CALL SIGNAL GENERATING (E.G., RINGING OR TONE GENERATOR)
[List of Patents for class 379 subclass 419]  419           TERMINAL
[List of Patents for class 379 subclass 420.01]  420.01           Subclass 420.01 indent level is 1 Having loudspeaking conversation capability (e.g., hands- free type or speakerphone)
[List of Patents for class 379 subclass 420.02]  420.02           Subclass 420.02 indent level is 2 Hands-free loudspeaker feature
[List of Patents for class 379 subclass 420.03]  420.03           Subclass 420.03 indent level is 2 Hands-free microphone feature
[List of Patents for class 379 subclass 420.04]  420.04           Subclass 420.04 indent level is 2 Hands-free accesory or attachment
[List of Patents for class 379 subclass 421]  421           Subclass 421 indent level is 1 Having muting
[List of Patents for class 379 subclass 422]  422           Subclass 422 indent level is 1 Switch or switch actuator structure
[List of Patents for class 379 subclass 423]  423           Subclass 423 indent level is 2 Line selection
[List of Patents for class 379 subclass 424]  424           Subclass 424 indent level is 2 Receiver or handset position responsive (e.g., hookswitch)
[List of Patents for class 379 subclass 425]  425           Subclass 425 indent level is 3 With mechanism for latching hookswitch or plunger against motion
[List of Patents for class 379 subclass 426]  426           Subclass 426 indent level is 3 Movable holder for receiver or handset
[List of Patents for class 379 subclass 427]  427           Subclass 427 indent level is 3 Having plunger and lever linkage
[List of Patents for class 379 subclass 428.01]  428.01           Subclass 428.01 indent level is 1 Housing or housing component
[List of Patents for class 379 subclass 428.02]  428.02           Subclass 428.02 indent level is 2 Handset or headset combined with telephone base
[List of Patents for class 379 subclass 428.03]  428.03           Subclass 428.03 indent level is 2 Display on telephone base
[List of Patents for class 379 subclass 428.04]  428.04           Subclass 428.04 indent level is 2 Base having detachable accessory
[List of Patents for class 379 subclass 429]  429           Subclass 429 indent level is 2 Having distinct circuitry support structure (e.g., circuit board)
[List of Patents for class 379 subclass 430]  430           Subclass 430 indent level is 2 Body supported (e.g., headgear)
[List of Patents for class 379 subclass 431]  431           Subclass 431 indent level is 2 Separate housings for earphone and microphone (e.g., candlestick type)
[List of Patents for class 379 subclass 433.01]  433.01           Subclass 433.01 indent level is 2 Handset structure
[List of Patents for class 379 subclass 433.02]  433.02           Subclass 433.02 indent level is 3 Speaker mounting (i.e., speaker phone feature)
[List of Patents for class 379 subclass 433.03]  433.03           Subclass 433.03 indent level is 3 Microphone mounting
[List of Patents for class 379 subclass 433.04]  433.04           Subclass 433.04 indent level is 3 Display on handset
[List of Patents for class 379 subclass 433.05]  433.05           Subclass 433.05 indent level is 3 Connector
[List of Patents for class 379 subclass 433.06]  433.06           Subclass 433.06 indent level is 3 Button or switch having specific function
[List of Patents for class 379 subclass 433.07]  433.07           Subclass 433.07 indent level is 4 Keypad
[List of Patents for class 379 subclass 433.08]  433.08           Subclass 433.08 indent level is 3 Battery
[List of Patents for class 379 subclass 433.09]  433.09           Subclass 433.09 indent level is 3 Card (e.g., SIM or magnetic strip card)
[List of Patents for class 379 subclass 433.1]  433.1           Subclass 433.1 indent level is 3 Handset having special feature (e.g., wrist watch)
[List of Patents for class 379 subclass 433.11]  433.11           Subclass 433.11 indent level is 3 Moveable or removeable element (e.g., cover)
[List of Patents for class 379 subclass 433.12]  433.12           Subclass 433.12 indent level is 4 Slideable mechanism
[List of Patents for class 379 subclass 433.13]  433.13           Subclass 433.13 indent level is 4 Rotatable mechanism (e.g., hinge)
[List of Patents for class 379 subclass 432]  432           Subclass 432 indent level is 2 Loudspeaking set
[List of Patents for class 379 subclass 434]  434           Subclass 434 indent level is 2 Specified terminal configuration (e.g., novelty type)
[List of Patents for class 379 subclass 435]  435           Subclass 435 indent level is 2 Wall set or convertible type
[List of Patents for class 379 subclass 436]  436           Subclass 436 indent level is 2 Desk set
[List of Patents for class 379 subclass 437]  437           Subclass 437 indent level is 2 Protective structure
[List of Patents for class 379 subclass 438]  438           Subclass 438 indent level is 3 Of cord or connector
[List of Patents for class 379 subclass 439]  439           Subclass 439 indent level is 3 Antiseptic
[List of Patents for class 379 subclass 440]  440           Subclass 440 indent level is 2 Casing or enclosure, per se
[List of Patents for class 379 subclass 441]  441           TERMINAL ACCESSORY OR AUXILIARY EQUIPMENT
[List of Patents for class 379 subclass 442]  442           Subclass 442 indent level is 1 With circuit connection to terminal
[List of Patents for class 379 subclass 443]  443           Subclass 443 indent level is 1 Including coupler (e.g., inductive)
[List of Patents for class 379 subclass 444]  444           Subclass 444 indent level is 2 Acoustic
[List of Patents for class 379 subclass 445]  445           Subclass 445 indent level is 1 Locking device
[List of Patents for class 379 subclass 446]  446           Subclass 446 indent level is 1 Telephone receiver support
[List of Patents for class 379 subclass 447]  447           Subclass 447 indent level is 1 Attachable to terminal housing
[List of Patents for class 379 subclass 448]  448           Subclass 448 indent level is 2 Hookswitch operator
[List of Patents for class 379 subclass 449]  449           Subclass 449 indent level is 2 Handset holder (e.g., shoulder rest)
[List of Patents for class 379 subclass 450]  450           Subclass 450 indent level is 2 Clips onto terminal structure
[List of Patents for class 379 subclass 451]  451           Subclass 451 indent level is 1 Protective structure
[List of Patents for class 379 subclass 452]  452           Subclass 452 indent level is 2 Antiseptic, disinfecting, or disposable
[List of Patents for class 379 subclass 453]  453           Subclass 453 indent level is 1 Hood or enclosure (e.g., booth)
[List of Patents for class 379 subclass 454]  454           Subclass 454 indent level is 1 Support or stand
[List of Patents for class 379 subclass 455]  455           Subclass 455 indent level is 2 Handset holder
[List of Patents for class 379 subclass 456]  456           Subclass 456 indent level is 1 Dialing tool
[List of Patents for class 379 subclass 457]  457           MISCELLANEOUS
 
CROSS-REFERENCE ART COLLECTIONS
 
[List of Patents for class 379 subclass 900]  900           INTERNET (E.G., INTERNET PHONE, WEBPHONE, INTERNET-BASED TELEPHONY)
[List of Patents for class 379 subclass 901]  901           VIRTUAL NETWORKS OR VIRTUAL PRIVATE NETWORKS
[List of Patents for class 379 subclass 902]  902           AUTO-SWITCH FOR AN INCOMING VOICE DATA, OR FAX TELEPHONE CALL (E.G., COMP/FAX/TEL)
[List of Patents for class 379 subclass 903]  903           PASSWORD
[List of Patents for class 379 subclass 904]  904           AUTO-CALLING
[List of Patents for class 379 subclass 905]  905           FAX MAIL
[List of Patents for class 379 subclass 906]  906           TOUCHTONE MESSAGE TRANSMISSION
[List of Patents for class 379 subclass 907]  907           SPEECH RECOGNITION VIA TELEPHONE SYSTEM OR COMPONENT
[List of Patents for class 379 subclass 908]  908           MULTIMEDIA
[List of Patents for class 379 subclass 909]  909           ALTERNATIVES
[List of Patents for class 379 subclass 910]  910           BAR CODE OR OPTICAL CHARACTER READER WITH TELEPHONE
[List of Patents for class 379 subclass 911]  911           DISTINCTIVE RINGING
[List of Patents for class 379 subclass 912]  912           GEOGRAPHICALLY ADAPTIVE
[List of Patents for class 379 subclass 913]  913           PERSON LOCATOR OR PERSON-SPECIFIC
[List of Patents for class 379 subclass 914]  914           PROGRAMMABLE TELEPHONE COMPONENT
[List of Patents for class 379 subclass 915]  915           Subclass 915 indent level is 1 "Soft" key
[List of Patents for class 379 subclass 916]  916           TOUCH SCREEN ASSOCIATED WITH TELEPHONE SET
[List of Patents for class 379 subclass 917]  917           VOICE MENUS
 
FOREIGN ART COLLECTIONS
 
   FOR000          CLASS-RELATED FOREIGN DOCUMENTS
Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collections listed below. These Collections contain ONLY foreign patents or non-patent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived.
   FOR100          HAVING NEAR FIELD LINK (E.G., CAPACITIVE, INDUCTIVE) (379/55)
   FOR101          HAVING ELECTROMAGNETIC LINK FOR SPEECH OR PAGING SIGNAL (E.G., LIGHT WAVE LINK) (379/56)
   FOR102          Subclass FOR102 indent level is 1 Control of selectively responsive paging arrangement over telephone line (379/57)
   FOR112          TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) (379/90)
   FOR113          Subclass FOR113 indent level is 1 Credit authorization (379/91)
   FOR114          Subclass FOR114 indent level is 1 Polling (e.g., audience survey) (379/92)
   FOR115          Subclass FOR115 indent level is 1 With transmission of a digital message signal over a telephone line (379/93)
   FOR116          Subclass FOR116 indent level is 2 Including switching station (379/94)
   FOR117          Subclass FOR117 indent level is 2 Access restricting (379/95)
   FOR118          Subclass FOR118 indent level is 2 Including terminal for display of digital information (379/96)
   FOR119          Subclass FOR119 indent level is 2 By voice frequency signal (e.g., tone code) (379/97)
   FOR120          Subclass FOR120 indent level is 3 By modulated audio tone (379/98)
   FOR121          Subclass FOR121 indent level is 3 Having acoustic link (379/99)
   FOR122          Subclass FOR122 indent level is 1 To produce visual-graphic copy reproduction (e.g., facsimile) (379/100)
   FOR123          Subclass FOR123 indent level is 1 Audio program distribution (379/101)
   FOR124          Subclass FOR124 indent level is 1 Remote control (379/102)
   FOR125          Subclass FOR125 indent level is 2 Of entrance or exit lock (379/103)
   FOR126          Subclass FOR126 indent level is 2 With indication (379/104)
   FOR127          Subclass FOR127 indent level is 2 From terminal (379/105)
   FOR128          Subclass FOR128 indent level is 1 Remote indication over telephone line (e.g., telemetry) (379/106)
   FOR129          Subclass FOR129 indent level is 2 Meter reading (379/107)
   FOR130          Subclass FOR130 indent level is 1 Telegraphy (379/108)
   FOR131          Subclass FOR131 indent level is 2 Over telephone line (379/109)
   FOR132          COMPOSITE SUBSTATION OR TERMINAL (E.G., HAVING CALCULATOR, RADIO) (379/110)
   FOR133          WITH AUDIO MESSAGE STORAGE AND RETRIEVAL (379/67)
   FOR134          Subclass FOR134 indent level is 1 Stored in digital form (379/88)
   FOR135          Subclass FOR135 indent level is 2 Subscriber control of central office message storage or retrieval (379/89)
   FOR136          Subclass FOR136 indent level is 1 DIAGNOSTIC TESTING, MALFUNCTION, INDICATION, OR ELECTRICAL CONDITION MEASUREMENT (379/1)
   FOR137          Subclass FOR137 indent level is 2 By loopback (379/5)
   FOR138          Subclass FOR138 indent level is 2 By analysis of injected tone signal (379/6)
   FOR139          Subclass FOR139 indent level is 2 By automatic testing sequence (e.g., programmable, scanning) (379/10)
   FOR140          Subclass FOR140 indent level is 1 Of automatic switching equipment (379/15)
   FOR141          Subclass FOR141 indent level is 2 Fault detection or location (e.g., continuity, leakage) (379/26)
   FOR142          Subclass FOR142 indent level is 1 Of subscriber loop or terminal (379/27)
   FOR143          Subclass FOR143 indent level is 2 Terminal arrangement to enable remote testing (e.g., testing interface) (379/29)
   FOR144          Subclass FOR144 indent level is 1 Indication of nonstandard condition of telephone equipment (379/32)
   FOR145          Subclass FOR145 indent level is 2 SERVICE MONITORING OR OBSERVATION (379/34)
   FOR146          Subclass FOR146 indent level is 1 Computer or processor control (379/112)
   FOR147          Subclass FOR147 indent level is 2 Call traffic recording (379/113)
   FOR148          Subclass FOR148 indent level is 2 Call charge metering or monitoring (379/114)
   FOR149          Subclass FOR149 indent level is 3 Interexchange operations (379/115)
   FOR150          AT CENTRAL OFFICE (379/121)
   FOR151          Subclass FOR151 indent level is 1 Having line identification (e.g., automatic number identification-"ANI") (379/127)
   FOR152          WITH CALLING NUMBER DISPLAY OR RECORDING AT CALLED SUBSTATION (379/142)
   FOR153          Subclass FOR153 indent level is 1 Other than coin (379/144)
   FOR154          Subclass FOR154 indent level is 1 PRIVATE (E.G., HOUSE OR INTERCOM) OR SINGLE LINE SYSTEM (379/167)
   FOR155          Subclass FOR155 indent level is 1 SPECIAL SERVICES (379/201)
   FOR156          Subclass FOR156 indent level is 2 Conferencing (379/202)
   FOR157          Subclass FOR157 indent level is 2 Operator control (379/203)
   FOR158          Subclass FOR158 indent level is 1 Subscriber control (379/204)
   FOR159          Subclass FOR159 indent level is 2 Conference initiation by single calling sation (379/205)
   FOR160          Subclass FOR160 indent level is 3 At substation (379/206)
   FOR161          Subclass FOR161 indent level is 4 At plural exchange (379/207)
   FOR162          Subclass FOR162 indent level is 2 Priority override (e.g., butt-in) (379/208)
   FOR163          Subclass FOR163 indent level is 3 Repetitive call attempts (e.g., camp-on-busy, retry) (379/209)
   FOR164          Subclass FOR164 indent level is 3 Call diversion (e.g., call capture) (379/210)
   FOR165          Subclass FOR165 indent level is 2 Call forwarding (379/211)
   FOR166          Subclass FOR166 indent level is 3 Call transfer (379/212)
   FOR167          Subclass FOR167 indent level is 3 Intercept (e.g., dead or changed number) (379/213)
   FOR168          Subclass FOR168 indent level is 3 Secretarial or answering service (379/214)
   FOR169          Subclass FOR169 indent level is 2 Call waiting (379/215)
   FOR170          Subclass FOR170 indent level is 1 Abbreviated dialing or direct call (e.g., hot line) (379/216)
   FOR171          Subclass FOR171 indent level is 2 Audible paging (379/217)
   FOR172          Subclass FOR172 indent level is 2 Performed by operator (e.g., butt-in, busy verification) (379/218)
   FOR173          Subclass FOR173 indent level is 1 With interexchange network routing (379/220)
   FOR174          Subclass FOR174 indent level is 1 Alternate routing (379/221)
   FOR175          Subclass FOR175 indent level is 2 Call distribution to operator (379/265)
   FOR176          Subclass FOR176 indent level is 2 Call queuing (379/266)
   FOR177          Subclass FOR177 indent level is 2 Repertory or abbreviated call signal generation (379/355)
   FOR178          Subclass FOR178 indent level is 2 With dynamic memory (379/356)
   FOR179          Subclass FOR179 indent level is 3 Insertable control element or circuitry (e.g., card) (379/357)
   FOR180          Subclass FOR180 indent level is 1 Incoming call alerting (e.g., ringing) (379/373)
   FOR181          Subclass FOR181 indent level is 1 With music or audible message generation (379/374)
   FOR182          Subclass FOR182 indent level is 2 With electronic call sounder (e.g., tone "ringer") (379/375)
   FOR183          Subclass FOR183 indent level is 3 With visual indication of incoming call (379/376)
   FOR184          SUBSTATION OR TERMINAL CIRCUITRY (379/387)
   FOR185          Subclass FOR185 indent level is 1 For loudspeaking terminal (379/388)
   FOR186          Subclass FOR186 indent level is 2 With circuitry for voice control of transmission direction (379/389)
   FOR187          Subclass FOR187 indent level is 2 With amplification or attenuation level control (379/390)
   FOR188          SUBSCRIBER LINE OR TRANSMISSION LINE INTERFACE (379/399)
   FOR189          Subclass FOR189 indent level is 1 Echo suppresion, antisinging, or reverse path blocking (379/406)
   FOR190          Subclass FOR190 indent level is 2 Disable or inhibit (379/407)
   FOR191          Subclass FOR191 indent level is 2 Control by pilot frequency signal (379/408)
   FOR192          Subclass FOR192 indent level is 2 Having variolosser or attenuator (379/409)
   FOR193          Subclass FOR193 indent level is 2 Echo cancellation (e.g., phase opposition) (379/410)
   FOR194          Subclass FOR194 indent level is 3 Having transversal filter (379/411)
   FOR195          Subclass FOR195 indent level is 1 Having loudspeaking conversation capability (e.g., hands-free type or speakerphone) (379/420)
   FOR196          Subclass FOR196 indent level is 1 Housing or housing component (379/428)
   FOR197          Subclass FOR197 indent level is 2 Handset structure (379/433)

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