Patents
Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881)
02/1995
02/21/1995US5392342 Technique for use in sequentially routing personal telephone calls
02/21/1995US5392341 Automatic telephone line monitoring and selection apparatus and method
02/21/1995US5392340 Telephone exchange apparatus
02/21/1995US5392339 Telephone transfer apparatus using a special signal for transfer in facsimile communication
02/21/1995US5392338 Entry of alphabetical characters into a telephone system using a conventional telephone keypad
02/21/1995US5392336 Data message storage and pick up service
02/21/1995US5392335 Arrangement for preventing perpetration of toll fraud through an adjunct processor
02/21/1995US5392334 Off-hook detection and soft line seizure for telephone line sharing in a computer system
02/21/1995US5392329 Automatic call distribution system with emergency recording system and method
02/21/1995US5392327 Termination unit with maintenance facility
02/21/1995US5392277 Routing to intelligence
02/19/1995CA2129951A1 Remotely controlled multiple pair telephone pedestal/building terminal
02/16/1995WO1995005047A1 An audio processing system for teleconferencing
02/16/1995DE4326894A1 Circuit arrangement for ring tripping (turning off the ringing voltage) in an electronic subscriber circuit
02/15/1995EP0639018A2 Time sensitive messaging
02/15/1995EP0639017A2 Service selection system for multifunction telephone set and light indicator of the call warning signal
02/15/1995EP0638222A1 Process for organising control data for control procedures taking place between at least one terminal and a shared central station in communication systems.
02/15/1995CN1098840A TV communicating moniting system
02/14/1995US5390303 Communications system reconfigurable with reduced network configuration data
02/14/1995US5390249 Receiver device for receiving ringing signals in an off-hook line condition
02/14/1995US5390244 Method and apparatus for periodic signal detection
02/14/1995US5390243 Telemarketing complex with automatic threshold levels
02/14/1995US5390242 Rerouting in a distributed telecommunication system
02/14/1995US5390241 Shared line appearance across a plurality of switching systems
02/14/1995US5390232 System for control of subscriber progragmmability
02/14/1995US5390231 Protection and recovery of telephone line interface circuits
02/14/1995US5390179 Remote provisioning of telephone channel unit using inband digital code sequences transmitted over tandem link
02/14/1995US5390177 Conferencing arrangement for compressed information signals
02/14/1995US5390170 Method and apparatus providing for bootstrapping of switches in an ATM network or the like
02/14/1995CA2044068C Telephone system with message recording function
02/14/1995CA2032651C Telephone subscriber line voltage change detection
02/14/1995CA1334443C Integrated communication system for ensuring effective use of channels
02/09/1995WO1995004436A1 Intelligent networks
02/09/1995WO1995004427A1 Automated dispatch system and method
02/09/1995WO1995004424A1 Method of storing a page in a voice mail system
02/09/1995WO1995004422A1 Method and apparatus for limiting the duration of a telephone call
02/09/1995DE4326596A1 Protective circuit arrangement for electronic subscriber line interface circuits
02/09/1995DE4325459A1 Tone transmitter with an identification and authentication device
02/09/1995CA2166546A1 Intelligent networks
02/08/1995EP0637884A1 System for testing the use registration function in a telecommunication system
02/07/1995US5388151 Technique for reducing message notification blockage in voice mail systems
02/07/1995US5388146 Automated telephone system using multiple languages
02/07/1995CA2051070C Isdn d channel congestion control method
02/07/1995CA2048679C Communications network
02/07/1995CA2041501C Automated channel test unit
02/07/1995CA2038476C Automatic personal search telephone system
02/05/1995CA2126710A1 Cable management system with automatic mapping
02/02/1995WO1995003683A1 Space-saving memory module
02/02/1995WO1995003662A1 Testing telecommunications equipment
02/02/1995WO1995003661A1 Voice message keepsake system
02/02/1995EP0648372A4 Surge arrestor fail safe thermal overload mechanism.
02/02/1995DE4324292C1 Method for determining a quantity characterising the quality of digital speech transmission
02/02/1995CA2167309A1 Testing telecommunications equipment
02/01/1995EP0637176A2 Subscriber interface box
02/01/1995EP0637160A2 Distributed system for call processing
02/01/1995EP0637159A2 Telecommunications system sequence calling
02/01/1995EP0637158A1 Telephone answering system
02/01/1995EP0636296A1 Impedance synthesizer for a subscriber line interface circuit.
02/01/1995EP0636294A1 Speech recognition system for electronic switches in a cellular telephone or personal communications network
02/01/1995EP0636293A1 Toll call telephone service center
01/1995
01/31/1995US5386467 Intelligent network communication system
01/31/1995US5386466 Automatic initialization of a distributed telecommunication system
01/31/1995US5386464 Feature control system utilizing design oriented state table language
01/31/1995US5386459 Method of defining operation of switching system peripherals
01/31/1995US5386454 Remotely controlled multiple pair telephone pedestal/building terminal
01/31/1995US5386417 Method and apparatus for establishing connections in a communications access network
01/31/1995US5386412 Telecommunication system protocol for asynchronous data communication between multiport switch control processor and information support personal computer terminal
01/25/1995EP0635964A1 Inspection apparatus related to individuals for telephone dialing
01/25/1995EP0635958A2 Design and managing method for communication networks
01/25/1995EP0635191A1 A method of completing a telephone call in a telephone system
01/25/1995CN1097913A Digital user loop central machine system
01/24/1995US5384841 Automatic call distribution network with call overload system and method
01/24/1995US5384840 Telecommunications system SS7 signaling interface with signal transfer capability
01/24/1995US5384836 Facsimile apparatus automatically registrable of identification name
01/24/1995US5384833 Voice-operated service
01/24/1995US5384832 Method and apparatus for a telephone message announcing device
01/24/1995US5384831 System for providing personalized telephone calling features
01/24/1995US5384829 Digital computer platform for supporting telephone network applications
01/24/1995US5384822 Computer controlled test facility for a telecommunication switch
01/24/1995US5384773 Multi-media analog/digital/optical switching apparatus
01/24/1995US5384772 Method and apparatus for audio flow control during teleconferencing
01/24/1995US5384771 Multimedia call configuration system
01/24/1995US5384768 Tracing system for tracing transmission route in transmission network
01/24/1995US5384766 LAN management system in electronic switching apparatus
01/24/1995CA2108381C Telephone agent call management system
01/19/1995WO1995002298A1 Front end processor employing data over voice communication with smart telephones
01/19/1995DE4424896A1 Verfahren zum Errichten und Abrufen eines Telefonbenutzerprofils A method of constructing and retrieving a telephone user profile
01/19/1995DE4323310A1 Dial-up telecommunications network, preferably a PABX system, in which the subscribers concerned can be identified by slot-in cards
01/19/1995DE4317702C1 Method for carrying out a control procedure in a telecommunications system in conjunction with the switchover of an exchange line to the hold condition
01/19/1995CA2166690A1 Front end processor employing data over voice communication with smart telephones
01/18/1995EP0634877A2 System and method for communicating with travelers
01/18/1995EP0634861A2 Subscriber line circuit for connecting a subscriber line with a digital time division exchange
01/18/1995EP0634860A1 Methods and apparatus for coordinating and controlling the operation of amis analog voice messaging system networks in response to message delivery session status signals
01/18/1995EP0634857A2 Multimedia communication terminal
01/18/1995EP0634852A2 Method of remote interrogation of access authorisation for subscriber equipment
01/18/1995EP0634081A1 Method of signalling subscriber numbers in a telecommunications network.
01/18/1995EP0634070A1 Automated telecommunication peripheral system
01/18/1995EP0634036A1 Leaky bucket for supervision in industrial processes
01/17/1995US5383184 Multi-speaker conferencing over narrowband channels
01/17/1995US5383177 Packet switching testing method and apparatus