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)
06/1998
06/09/1998US5765033 System for routing electronic mails
06/09/1998US5764758 Method for converting a message
06/09/1998US5764757 Operator position and method for remote-controlling a speech connection
06/09/1998US5764755 Ring-signal generation in a SLIC
06/09/1998US5764754 For a telephone network
06/09/1998US5764752 Off-hook telephone clearing system
06/09/1998US5764750 Communicating between diverse communications environments
06/09/1998US5764748 Advanced call waiting processing
06/09/1998US5764747 Personal number communication system
06/09/1998US5764746 Holding party call back subscriber feature
06/09/1998US5764745 Apparatus and method for local number portability using nongeographic subscriber numbers
06/09/1998US5764744 Intelligent network call terminating method in intelligent network, and service exchange system and destination exchange system each used in intelligent network
06/09/1998US5764742 System for accessing telephonic communications and for conducting telephonic transactions
06/09/1998US5764740 System and method for optimal logical network capacity dimensioning with broadband traffic
06/09/1998US5764736 Method for switching between a data communication session and a voice communication session
06/09/1998US5764735 Device for multimedia communication
06/09/1998US5764733 Apparatus for providing enhanced addressing capability in voice messaging system networks
06/09/1998US5764732 Called party mailbox service
06/09/1998US5764731 Enhanced system for transferring, storing and using signaling information in a switched telephone network
06/09/1998US5764728 Silent monitoring agent IDs
06/09/1998US5764726 Test system for a communication link
06/09/1998US5764725 Apparatus for testing the line continuity of telephone switch equipment
06/09/1998US5764644 Method and apparatus for transport of communication signals over a public network
06/09/1998US5764639 System and method for providing a remote user with a virtual presence to an office
06/09/1998US5764628 Dual port interface for communication between a voice-over-data system and a conventional voice system
06/09/1998US5764627 Communication system
06/09/1998US5764278 Video conference apparatus for storing a value of a parameter when communication is temporarily disconnected
06/09/1998CA2143948C Distributive communications network
06/09/1998CA2083732C Quad channel unit health registers
06/06/1998CA2222569A1 User invocation of services in public switched telephone network via parallel data networks
06/05/1998CA2223673A1 Signal disconnection detection circuit that ensures positive detection of signal disconnection
06/05/1998CA2192122A1 Forced inter-switch call routing
06/04/1998WO1998024261A2 Measuring device for the interface of a transmission link with full duplex transmission in a two-wire common frequency operation
06/04/1998WO1998024259A2 Routing number selection by the base station controller of a cellular telephone network
06/04/1998WO1998024230A2 A mechanism for a system and method for detecting fraudulent use of collect calls
06/04/1998WO1998024226A1 Signal processing apparatus
06/04/1998WO1998024225A1 Interactive apparatus
06/04/1998WO1998024224A1 General access system
06/04/1998WO1998024223A2 Universal compatibility software system for services in communications and information processing networks
06/04/1998WO1998024222A2 Software fault management system
06/04/1998WO1998024221A2 Method for measuring qualitative parameters of a permanently connected message transmission link
06/04/1998WO1998024220A2 Method and apparatus for isolating network failures by correlating paths issuing alarms with failure spans
06/04/1998WO1998024219A2 System and method for providing directory assistance information
06/04/1998WO1998024213A2 Method and apparatus for sending an annoucement to caller
06/04/1998WO1998018082A3 Method for qos measurement
06/04/1998WO1998010556A3 Improvements in, or relating to, multi-carrier transmission systems
06/04/1998WO1998010548A3 Improvements in, or relating to, multi-carrier transmission systems
06/04/1998DE19752651A1 Operations and monitoring method for airport communications devices
06/04/1998DE19649380A1 Rental property handling method via telecommunication network
06/04/1998CA2273095A1 General access system
06/04/1998CA2272609A1 Software fault management system
06/04/1998CA2272069A1 Migration of routing number selection to the base station controller of a cellular telephone network
06/04/1998CA2223337A1 Automatic e-mail notification system
06/04/1998CA2213591A1 System and method for voiced interface with hyperlinked information
06/03/1998EP0845919A2 Network restoration
06/03/1998EP0845913A2 Private circuits
06/03/1998EP0845895A2 Semi-interruptible messages for telephone systems making voice announcements
06/03/1998EP0845894A2 A system for accessing multimedia mailboxes and messages over the internet and via telephone
06/03/1998EP0845774A2 Method and apparatus for automatically generating a speech recognition vocabulary from a white pages listing
06/03/1998EP0845193A1 Cellular communications system with screening of unauthorized services
06/03/1998EP0845186A1 An improved access to telecommunications networks in multi-service environment
06/03/1998EP0845181A1 Link scheduling
06/03/1998CN1183880A Mobile radio system with translation of BCIE
06/03/1998CN1183872A System and method for providing portable telephone number service
06/03/1998CN1183703A Remote subscriber module capable of processing internal call and method for controlling the same
06/03/1998CN1183695A Apparatus, method and system for audio and video conferencing and telephony
06/03/1998CN1183686A Message store and forward system
06/02/1998US5761638 Telephone network apparatus and method using echo delay and attenuation
06/02/1998US5761432 Method and apparatus for providing an efficient use of telecommunication network resources
06/02/1998US5761312 Enhanced individual intelligent communication platform for subscribers on a telephone system
06/02/1998US5761293 Network interface
06/02/1998US5761290 Alternate service activation
06/02/1998US5761289 800 number callback
06/02/1998US5761286 Method for enabling communications between calling an called multmedia terminals
06/02/1998US5761285 Universal telephony application client that is configurable from a profile for a telphone call campaign
06/02/1998US5761280 Telephone web browser arrangement and method
06/02/1998US5761277 personal mobile communication system
06/02/1998US5761276 Voice mail service apparatus and a controlling method thereof
06/02/1998US5761274 Method for regurating call congestion and ISDN exchanger for performing the same
06/02/1998US5761273 Analog self-test circuitry for a trunk interface
06/02/1998US5761272 Method of and system for performing telecommunications stress testing
06/02/1998US5761207 Multiplex communication system using variable multiframe format
06/02/1998US5761201 System and method for private addressing plans using community addressing
06/02/1998US5760823 Video messaging arrangement
06/02/1998US5760345 Tele-writing system, for each other changing image displayed on another terminal, having function of identifying document to be processed in tele-writing operation
06/02/1998CA2005996C Restriction of communication service accessibility among subscriber communities
05/1998
05/29/1998CA2222667A1 Network restoration
05/29/1998CA2221004A1 Satellite communication system and method thereof
05/28/1998WO1998023121A1 Latency counter for scanning timers
05/28/1998WO1998023117A2 Method and mobile communication system for routing of call connections
05/28/1998WO1998023113A2 Location-dependent call forwarding
05/28/1998WO1998023102A2 Personal computer control and activation device
05/28/1998WO1998023098A1 A service management system for use in communications
05/28/1998WO1998023096A2 System and method for implementing local number portability
05/28/1998WO1998023095A2 System and method for interfacing a local communication device
05/28/1998WO1998023080A2 A communication system architecture
05/28/1998WO1998023079A1 System and method for transporting a call in a telecommunication network
05/28/1998WO1998023075A2 Multimedia teleconferencing bridge
05/28/1998WO1998023063A1 Telecommunications tandem system for circuit-based traffic
05/28/1998WO1998023058A2 System for integrated management of messaging and communications
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