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