Patents
Sitemap › H04 - Electric communication technique › H04M - Telephonic communication › H04M 3 - Automatic or semi-automatic exchanges
Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881)
05/1998
05/28/1998WO1998023053A1 Telecommunications system
05/28/1998WO1998014020A3 Determining grade of service and mobile telephone system
05/28/1998WO1998008354A3 Providing service area dependent subscriber data within a mobile telecommunications network
05/28/1998WO1998000944A3 Test detection apparatus and method
05/28/1998WO1997036411A3 Smart telecommunications interface
05/28/1998DE19647880A1 Information transfer method for packet switched digital system
05/28/1998DE19647109A1 Verfahren und Einrichtung zur Ermöglichung eines Zugriffs auf Dienste und Einrichtungen eines GSM-Mobilfunknetzes über ein externes Telekommunikationsnetz Method and apparatus for allowing access to services and facilities of a GSM network via an external telecommunications network
05/28/1998CA2279845A1 A communication system architecture
05/28/1998CA2272096A1 System for integrated management of messaging and communications
05/28/1998CA2271801A1 Location-dependent call forwarding
05/27/1998EP0844803A2 Asynchronous transfer mode integrated access service
05/27/1998EP0844797A2 Method for providing ubiquitous service to mobile subscribers using a wireless gateway switch
05/27/1998EP0844780A1 Method for silently alerting inbound-only telemetry interface units
05/27/1998EP0844779A2 Method and system for call screening
05/27/1998EP0844770A2 High voltage detection circuit, bell signal detection circuit and non-ringing call reception detection circuit
05/27/1998EP0844767A1 User controlled browser
05/27/1998EP0843947A2 Communication system comprising a network and call processor
05/27/1998EP0843943A1 Route finding in communications networks
05/27/1998EP0843942A1 Route finding in communications networks
05/27/1998EP0843941A1 Route Finding in Communications Networks
05/27/1998CN2282752Y Busy tone recognizer for telephone line
05/27/1998CN2282751Y 电话线路保护器 Telephone line protection
05/27/1998CN1183201A A method for determining the load induced by a routing verification test on a network
05/27/1998CN1183009A Device for realizing group calling data transmitting system
05/27/1998CN1182997A Circuit arrangement for integrating voice-system into EDP systems and into telephone systems, which are comected with the common X
05/27/1998CN1182994A Resource shared system and method in communication system
05/26/1998US5758286 Method for accomplishing a mobile telecommunications connection using abbreviated dialing
05/26/1998US5758281 Personal communications service using wireline/wireless integration
05/26/1998US5758279 System and method of rapid voice mail access in a radio telecommunications network
05/26/1998US5758088 System for transmitting messages, between an installed network and wireless device
05/26/1998US5758082 Mail terminal equipment
05/26/1998US5758079 Call control in video conferencing allowing acceptance and identification of participants in a new incoming call during an active teleconference
05/26/1998US5758027 Apparatus and method for measuring the fidelity of a system
05/26/1998US5757904 Context-sensitive presentation of information to call-center agents
05/26/1998US5757902 Telephone exchange for wire telephone and radio telephone
05/26/1998US5757901 Call transfer system and electronic mail transfer system
05/26/1998US5757900 System and method for single access database retrievals
05/26/1998US5757899 Call screening using subscriber specified timers and schedules
05/26/1998US5757897 Telephone switch call control unit
05/26/1998US5757891 Ever ready telephonic answering-machine for receiving and delivering electronic messages
05/26/1998US5757889 Voice monitoring method for a telephone switching equipment
05/26/1998US5757805 Signaling information processing apparatus for use in an electronic switching system
05/26/1998US5757781 Dynamic insertion and removal of multi-media call-handling resources into/from video calls to provide calling features
05/26/1998US5757776 Method and apparatus for determining the origin of an alarm indication signal
05/26/1998US5757680 Method and arrangement for configuring electronic device for multiple testing formats
05/26/1998US5757510 Facsimile mail apparatus
05/26/1998US5756280 Multimedia distribution network including video switch
05/22/1998WO1998021913A2 Address retrieval system
05/22/1998WO1998021911A1 Device for routing information updates
05/22/1998WO1998021905A2 Method and device to provide access to services and equipment in a gsm mobile telephone network via an external telecommunication network
05/22/1998WO1998021904A1 Telecommunications networks
05/22/1998WO1998021903A1 Telecommunications networks
05/22/1998WO1998021902A2 Method and system for capturing and recording call information
05/22/1998WO1998021901A1 Merging of calls
05/22/1998WO1998021900A1 Method and arrangement for call forwarding in intelligent network
05/22/1998WO1998021899A1 Call set-up by an intelligent network
05/22/1998WO1998021872A1 System and method for providing and using universally accessible voice and speech data files
05/22/1998WO1998021871A1 Telecommunication management system and user interface
05/22/1998WO1998021870A2 Apparatus and method for scheduling a telephone call
05/22/1998WO1998021869A1 Fault management system for a telecommunications network
05/22/1998WO1998021868A2 Arrangement in a subscriber line interface circuit
05/22/1998WO1998021865A2 Apparatus and method for optimizing the use of long distance telephone services
05/22/1998WO1998021864A2 Method of and system for call routing compliant with regulatory routing requirements
05/22/1998WO1998010552A3 Improvements in, or relating to, multi-carrier transmission systems
05/22/1998WO1998010549A3 Improvements in, or relating to, multi-carrier transmission systems
05/22/1998CA2271472A1 Apparatus and method for scheduling a telephone call
05/22/1998CA2271108A1 Arrangement in a subscriber line interface circuit
05/22/1998CA2242370A1 Merging of calls
05/20/1998EP0843501A2 Resource sharing for book-ahead and instantaneous-request calls
05/20/1998EP0843492A2 Apparatus in a messaging system for implementing a group call
05/20/1998EP0843490A2 Method and device providing an explicit call transport service in telecommunications
05/20/1998EP0843488A2 Method, exchange and communications network for controlling mass calling connections
05/20/1998EP0843454A2 Extending internet calls to a telephone call center
05/20/1998EP0843453A2 System and method for improved mail networking
05/20/1998EP0842490A2 Computerized interactor systems and methods for providing same
05/20/1998EP0774196B1 Service node for a telephony network
05/20/1998EP0746846A4 Voice-controlled account access over a telephone network
05/20/1998EP0686336B1 Event correlation
05/20/1998EP0503059B1 Wide area audio response network
05/20/1998DE19646629A1 Telecommunication connection charge enabling method
05/20/1998DE19643948A1 Telecommunication facility activation method
05/20/1998CN1182512A Universal demarcation point
05/20/1998CN1182337A Method for releasing call in codeless telephone
05/20/1998CN1182330A Echo Controlling apparatus of video conferencing system and control method using the same
05/20/1998CN1182323A Method of restricting duration of telephone calls and telephone implementing such method
05/20/1998CN1182312A Digital voice transmission system
05/20/1998CA2218676A1 Asynchronous transfer mode integrated access service
05/19/1998US5754785 Communications network equipment
05/19/1998US5754784 Multimedia system
05/19/1998US5754775 Method and apparatus for formulating connection addresses on a PC conferencing system supporting multiple transport type
05/19/1998US5754765 Automatic transport detection by attempting to establish communication session using list of possible transports and corresponding media dependent modules
05/19/1998US5754641 Method of screening outgoing calls via a video display
05/19/1998US5754640 Apparatus and method for qualifying telephone numbers for a telephone network
05/19/1998US5754639 Method and apparatus for queuing a call to the best split
05/19/1998US5754638 Multi-call simultaneous transfer system and switchboard
05/19/1998US5754635 Apparatus and method for receiving multi-channel caller identification data
05/19/1998US5754632 Management of communications networks
05/19/1998US5754631 Voice response unit having robot conference capability on ports
05/19/1998US5754630 System and associated method for multiple extension routing via an advanced intelligent network (AIN)
05/19/1998US5754628 Method of providing telecommunications network-based message services
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