Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881) |
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07/29/1999 | WO1999026424A3 Negotiated routing in telephony systems |
07/29/1999 | WO1999026347A3 Method and apparatus for testing a subscriber line interface |
07/29/1999 | WO1999020057A3 Arrangement in a telecommunication system, especially a personal communication system |
07/29/1999 | WO1999009760A3 Transfer of calling party identification in a mobile communication system |
07/29/1999 | DE19802323A1 Generation of data to be used in establishing a favorable telephone connection |
07/29/1999 | CA2318914A1 Intelligent radio |
07/29/1999 | CA2318861A1 Multi-language display keypad |
07/29/1999 | CA2318832A1 Method for adjusting current levels, which have been corrupted by disturbance variables, in a subscriber line circuit |
07/29/1999 | CA2318541A1 Computer telephony integrated pbx |
07/29/1999 | CA2318530A1 Method and devices related to features or feature agent and method of controlling process flow between features |
07/28/1999 | EP0932314A1 Device for identifying a called terminal from a plurality of user terminals connected to a telephone network switch, whereby the telephone network switch is connected to at least one fixed radiotelephone terminal |
07/28/1999 | EP0932312A1 Private branch exchange |
07/28/1999 | EP0931422A1 Method of preventing data inconsistency between master exchange data and backup exchange data |
07/28/1999 | EP0931408A1 Multi-protocol telecommunications routing optimization |
07/28/1999 | EP0931398A1 Telecommunications tandem system for circuit-based traffic |
07/28/1999 | EP0931397A1 Method and system for a two-step dialing connection process providing an identification of a second terminal via the internet |
07/28/1999 | CN1224559A Method and system for extended addressing plans |
07/28/1999 | CN1224557A Communication path control device, communication path control method, and communication path control unit |
07/28/1999 | CN1224315A Method for forwarding call at high penetration notification mode in satellite communication terminal |
07/28/1999 | CN1224297A Radio switching equipment and circuit control method for radio switching equipment |
07/27/1999 | US5930752 Audio interactive system |
07/27/1999 | US5930723 Establishing an expanded group call in a mobile communication system |
07/27/1999 | US5930711 Handoff test method between mobile communication switching stations |
07/27/1999 | US5930709 Method of creating signal message common files for mobile switching center |
07/27/1999 | US5930702 Personal mobility communication system |
07/27/1999 | US5930701 Providing caller ID within a mobile telecommunications network |
07/27/1999 | US5930700 System and method for automatically screening and directing incoming calls |
07/27/1999 | US5930699 To provide a mobile station in a cellular telephone network access |
07/27/1999 | US5930698 Method and apparatus for efficient law enforcement agency monitoring of telephone calls |
07/27/1999 | US5930479 Communications addressing system |
07/27/1999 | US5930351 Remote telephone ringer controller |
07/27/1999 | US5930350 System, method and computer program for automated speed dialing |
07/27/1999 | US5930347 Interruption of a call between two terminals by a call from another terminal |
07/27/1999 | US5930346 Extended public switched telephone network architecture with enhanced subscriber control on call setup |
07/27/1999 | US5930344 Method and apparatus for tracing a specific communication |
07/27/1999 | US5930342 Asset management for copiers and facsimile machines |
07/27/1999 | US5930341 ADSI web browser for retrieving internet data files |
07/27/1999 | US5930339 Apparatus for processing a call |
07/27/1999 | US5930337 Dynamic message-mailbox size variation |
07/27/1999 | US5930336 Voice dialing server for branch exchange telephone systems |
07/27/1999 | US5930335 Method and apparatus for tapping control in an electronic switching system |
07/27/1999 | US5930334 Method and apparatus for monitoring the operation of telecommunications equipment |
07/27/1999 | US5930333 Method and system for projecting service availability in a telecommunications system |
07/27/1999 | US5930249 Process and routing system for dynamic traffic control in a communication network |
07/27/1999 | US5930237 Video conference system with ATM cell reuse |
07/27/1999 | US5930231 Block spectrum receiver for a broadband communications system |
07/27/1999 | US5930101 Overvoltage cut-off circuit of private exchange branch having tie line |
07/27/1999 | US5929898 Multi-point control unit for use in multi-point videoconference system capable of suppressing deterioration of picture quality on split screen |
07/27/1999 | US5929897 Automated distribution of video telephone calls |
07/27/1999 | US5928331 Distributed internet protocol-based real-time multimedia streaming architecture |
07/27/1999 | US5928325 Method of dynamically establishing communication of incoming messages to one or more user devices presently available to an intended recipient |
07/27/1999 | CA2195490C Merging the functions of switching and cross connect in telecommunications networks |
07/27/1999 | CA2195437C Service node for a telephony network |
07/27/1999 | CA2164550C Communication system using server |
07/26/1999 | CA2257466A1 Device for identifying a called terminal from among numerous user terminals connected to one telephone switch, the said switch being linked to at least one fixed radiotelephone terminal |
07/22/1999 | WO1999037102A2 Method and communication system for processing alarms using a management network involving several layers of management |
07/22/1999 | WO1999037100A1 Method for establishing a telecommunication link and telecommunication system therefor |
07/22/1999 | WO1999037081A1 Communications system |
07/22/1999 | WO1999037080A1 Connection handling in communications networks |
07/22/1999 | WO1999037079A1 Telecommunications networks |
07/22/1999 | WO1999037078A1 Calling subscriber validation |
07/22/1999 | WO1999037076A1 System and method for automatic pbx detection |
07/22/1999 | WO1999037070A1 Communication system with automatic information and media conversion |
07/22/1999 | WO1999037058A1 Internet telephony system with automated call answering |
07/22/1999 | WO1999037038A1 Method for setting up echo suppression devices in communication links with automatic machines |
07/22/1999 | WO1999036905A1 Information distributing apparatus, information transmitting apparatus, information receiving apparatus, and information distributing method |
07/22/1999 | WO1999036862A1 Intelligent human/computer interface system |
07/22/1999 | WO1999030514A3 Network management |
07/22/1999 | WO1998041032A3 Method and apparatus for establishing a voice call to a pstn extension for a networked client computer |
07/22/1999 | DE19801785A1 Alarm handling method for communication system with several management levels |
07/22/1999 | DE19801563A1 Central message processing unit |
07/22/1999 | DE19801498A1 Connection setting-up method for telecommunication network |
07/22/1999 | DE19623912C1 Circuit configuration for identifying errors in telecommunication lines and cables |
07/22/1999 | CA2317675A1 Intelligent human/computer interface system |
07/21/1999 | EP0930767A2 Information transmitting and receiving apparatus |
07/21/1999 | EP0930766A2 Systemfor digital radio communication between a wireless LAN an a PBX |
07/21/1999 | EP0930765A2 Apparatus and method that allow telephone callers to leave longer messages |
07/21/1999 | EP0930764A1 Arrangement for equalizing levels of service among skills |
07/21/1999 | EP0930763A1 Service activation |
07/21/1999 | EP0930755A1 Virtual reality networked system |
07/21/1999 | EP0930752A2 Method for allocating data and power in a discrete multitone communication system |
07/21/1999 | EP0929984A2 Method to restore subscriber related information in a communication network data base system |
07/21/1999 | EP0929982A2 Method for connecting an incoming call in a wireless telecommunications installation to a dual mode terminal |
07/21/1999 | EP0929980A1 Communication system consisting of at least two private branch exchanges (pbx) with team function |
07/21/1999 | EP0929979A1 Communications system consisting of at least two private branch exchanges with team function |
07/21/1999 | EP0929967A2 Remote supply circuitry |
07/21/1999 | EP0929966A1 Method and apparatus for automated provisioning and billing of communication services |
07/21/1999 | EP0929964A1 Communications system consisting of at least two private branch exchanges (pbx) with team function |
07/21/1999 | EP0929963A1 Method for controlling a collective line configuration of a telecommunications installation |
07/21/1999 | EP0929962A1 Voice-dialing system using model of calling behavior |
07/21/1999 | EP0929884A2 Method for transmitting data in a telecommunications network and switch for implementing said method |
07/21/1999 | EP0929880A1 Cashless payment by means of a mobile radio apparatus |
07/21/1999 | EP0728375B1 Cooling a large microprocessor in a small module |
07/21/1999 | EP0574523B1 Variable bit rate speech encoder |
07/21/1999 | CN1223778A Call forwarding function for a portable radio communications device |
07/21/1999 | CN1223774A Method and apparatus for providing different terminating call treatment based on service area |
07/21/1999 | CN1223766A Improvements in or relating to call handling |
07/21/1999 | CN1223528A Device for displaying faults in telephone distribution frame |
07/21/1999 | CN1223520A Ringing signal identifying method and device |
07/21/1999 | CN1223403A Redundant apparatus |