Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881) |
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10/01/1997 | EP0797887A1 Traffic control in a telecommunications system |
10/01/1997 | EP0702873B1 Service platform |
10/01/1997 | CN2263852Y Automatic Chinese timer of telephone switching system |
10/01/1997 | CN1160973A Call reservation method for subscriber of other exchange utilizing No.7 signal |
09/30/1997 | US5673393 Managing bandwidth over a computer network having a management computer that allocates bandwidth to client computers upon request |
09/30/1997 | US5673362 Speech synthesis system in which a plurality of clients and at least one voice synthesizing server are connected to a local area network |
09/30/1997 | US5673312 Control of call features provided to a subscriber by a hierarchical telecommunication switch |
09/30/1997 | US5673311 Hierarchical switch support of services for subscribers directly served by local exchange carriers |
09/30/1997 | US5673310 Hierarchical switch support of services for subscribers of separate centrex exchanges |
09/30/1997 | US5673299 Adjunct controller for a telephone system |
09/30/1997 | US5673268 Method of maintaining a modem connection over a telephone line |
09/30/1997 | US5673261 Communication system |
09/30/1997 | US5673257 Computer-based multifunction personal communication system |
09/30/1997 | US5673256 Apparatus and method for sending data messages at an optimum time |
09/30/1997 | US5673255 Apparatus for providing service to telephone subscribers connected to a remote terminal from multiple telephone service providers |
09/30/1997 | US5673080 Seamless multimedia conferencing system using enhanced endpoint devices |
09/30/1997 | CA2116256C Password verification system |
09/29/1997 | CA2201214A1 A method of managing digital signal carrying facilities |
09/29/1997 | CA2201207A1 A reprovisioning monitor |
09/29/1997 | CA2201206A1 An improved digital loop carrier system |
09/25/1997 | WO1997035446A1 Method for transmission of information from an information source to information receivers |
09/25/1997 | WO1997035443A2 System and method for providing services to subscriber stations connected to an access network |
09/25/1997 | WO1997035419A1 Method and system for rehome optimization |
09/25/1997 | WO1997035417A1 Method and apparatus for validating a subscriber terminal on a telecommunication network |
09/25/1997 | WO1997035416A1 A method of establishing a communications call |
09/25/1997 | WO1997035415A1 Method and system for optimized scheduling |
09/25/1997 | WO1997035404A1 Method and arrangement relating to the installation of a new subscriber in a telecomunications network |
09/25/1997 | WO1997035399A2 Time division duplexed multicarrier transmission |
09/25/1997 | WO1997035398A2 Process for data communications and a data communications system for carrying out the process |
09/25/1997 | DE19611021A1 Operating data remote managing in memory-programmable communication system |
09/25/1997 | DE19611001A1 Zugriffsknoten, Zugriffsnetz, Telekommunikationssystem unter Verwendung eines Zugriffsknotens und Verfahren zum Bereitstellen von Dienstleistungen von einem Servicenetz an mit dem Zugriffsnetz verbundene Teilnehmerstationen Access node access network, telecommunication system using an access node and method for providing services of a service network connected to the access network subscriber stations |
09/25/1997 | CA2250327A1 System and method for providing services to subscriber stations connected to an access network |
09/25/1997 | CA2249577A1 Method and apparatus for validating a subscriber terminal on a telecommunication network |
09/24/1997 | EP0797368A2 Telecommunication system, radio base station thereof, and portable telecommunication terminal thereof |
09/24/1997 | EP0797338A2 Method and arrangement for inter-connecting a virtual-reality world and the real world for the purpose of establishing a real-time communications connection such as a telephone call connection |
09/24/1997 | EP0797337A2 Method for enabling communications between calling and called multimedia terminals |
09/24/1997 | EP0797336A2 Mobile communication terminal equipment |
09/24/1997 | EP0796535A2 Communications apparatus |
09/24/1997 | EP0796534A2 Telephonic voice message transmission control method |
09/24/1997 | EP0796531A2 Call control in a telecommunication system |
09/24/1997 | CN1160471A Mobile telecommunications system |
09/24/1997 | CN1160466A Regional centrex |
09/24/1997 | CN1160330A Method for management of additional service in mobile communication network |
09/24/1997 | CN1160320A Method and apparatus for pre-paid return call |
09/24/1997 | CN1160315A Optical communication system and remote sensor interrogation |
09/23/1997 | US5671273 Sealed jack |
09/23/1997 | US5671251 Apparatus and method for a data communications device to selectively operate as an analog modem, as a digital modem, and as a terminal adapter |
09/23/1997 | US5671216 Method and apparatus for controlling transmission bandwidth between connectionless servers |
09/23/1997 | US5670957 Methods for communicating with a telecommunications device for the deaf |
09/23/1997 | US5670950 Private communications network system and method of authentication for a mobile station used in private communications networks |
09/23/1997 | CA2104850C Speech password system |
09/23/1997 | CA2097958C Voice message recovery system and method |
09/23/1997 | CA2095500C Telephone line overvoltage protection method and apparatus |
09/18/1997 | WO1997034437A1 Mobile telecommunications network having integrated wireless office system |
09/18/1997 | WO1997034420A1 Interactive cable network providing fax and voice mail |
09/18/1997 | WO1997034410A2 Network based multimedia messaging method for non-ccitt compliant switches |
09/18/1997 | WO1997034406A1 Telecommunications networks and services |
09/18/1997 | WO1997034405A1 Mail reception notifying system and mail reception notifying method |
09/18/1997 | WO1997034401A1 Call management system with call control from user workstation computers |
09/18/1997 | WO1997028658A3 Method and apparatus for providing a private communication system in a public switched telephone network |
09/18/1997 | WO1997021291A3 A system for on-demand remote access to a self-generating audio recording, storage, indexing and transaction system |
09/18/1997 | DE19610286A1 Communication terminal with programmable function keys |
09/18/1997 | DE19609556A1 Verfahren zur Datenkommunikation und Datenkommunikationssystem zur Durchführung des Verfahrens A method for data communication and data communication system for performing the method |
09/18/1997 | CA2247979A1 Mobile telecommunications network having integrated wireless office system |
09/17/1997 | EP0795993A2 Automatic announcement system |
09/17/1997 | EP0795992A2 Method and apparatus for a prepaid return call |
09/17/1997 | EP0795991A1 Communications system |
09/17/1997 | EP0795988A2 Method and device for limiting call authorization from communication terminals |
09/17/1997 | EP0795977A2 Method of transmitting an ADSL signal simultaneously with an ISDN signal |
09/17/1997 | EP0795256A1 A radio telecommunication system |
09/17/1997 | EP0795246A2 Intelligent call processing platform for home telephone system |
09/17/1997 | EP0795243A1 Routing in a communication network |
09/17/1997 | EP0795170A1 Telephone network service for converting speech to touch-tones |
09/17/1997 | CN1159723A Network blocking test method and equipment |
09/17/1997 | CN1159689A Method and device for transmitting communicational signal by public network |
09/16/1997 | US5668875 Method and apparatus for authentication in a communication system |
09/16/1997 | US5668866 Apparatus for protecting a subscriber line interface circuit against overvoltages |
09/16/1997 | US5668863 Method and apparatus for recording and retrieval of audio conferences |
09/16/1997 | US5668862 Method and apparatus for providing user controlled call management services |
09/16/1997 | US5668861 Telecommunications system with notification hold |
09/16/1997 | US5668860 Call screening at a hierarchical switch based on organizational membership of the parties |
09/16/1997 | US5668856 Method and system for screening calls directed to an international telephone operator |
09/16/1997 | US5668855 Message management system |
09/16/1997 | US5668854 Distributed system for call processing |
09/16/1997 | US5668853 Telecommunications calling feature method and apparatus |
09/16/1997 | US5668808 Path route retrieval method in a time multiplexer network |
09/16/1997 | CA2111655C Calling center employing unified control system |
09/16/1997 | CA2109899C Multi-media integrated message arrangement |
09/16/1997 | CA2108872C Audio/video telephone communications |
09/16/1997 | CA2108740C Telephone terminal controlled conference inspection |
09/16/1997 | CA2108739C Unattended meet-me-conference controlled by a telephone terminal |
09/16/1997 | CA2108738C Multi-level conference management and notification |
09/16/1997 | CA2102077C Call billing and measurement methods for redirected calls |
09/16/1997 | CA2096057C Automatic processing of calls with different communication modes in a telecommunications system |
09/16/1997 | CA2072182C Congestion control for high speed packet networks |
09/12/1997 | WO1997033450A1 Methods and systems for creating a spatial auditory environment in an audio conference system |
09/12/1997 | WO1997033446A1 Remote test of a wireless subscriber connection |
09/12/1997 | WO1997033441A1 Providing number portability by means of enhanced routing tables |
09/12/1997 | WO1997033440A1 Telecommunications networks |
09/12/1997 | WO1997033439A2 Process for making connections and accounting for connections in telecommunication systems |