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)
04/1998
04/23/1998DE19744108A1 Vorrichtung, Verfahren und System für Drahtleitungs-Audio- und Videokonferenzen und Telefongespräche Apparatus, method and system for wireline voice and video conferencing and telephone calls
04/23/1998DE19736257A1 Call priority allocation method for cordless telephone
04/23/1998DE19712503C1 Connection construction method for communication network
04/23/1998DE19651274C1 Speech channel test method for telecommunication system
04/23/1998DE19643251A1 Telecommunication network management system
04/23/1998CA2268846A1 Providing caller id within a mobile telecommunications network
04/23/1998CA2268845A1 Circuitry and method for simultaneously transmitting voice and data information
04/23/1998CA2268819A1 Method of handling service connections in a communication network
04/23/1998CA2268530A1 Network based predictive dialing
04/23/1998CA2212438A1 On demand mailbox creation for messaging systems
04/22/1998EP0837612A2 Call blocking involving ported directory numbers
04/22/1998EP0837611A2 Method for called party control of telecommunications network services
04/22/1998EP0837610A2 Improved interface card for use in a telecommunications network
04/22/1998EP0837588A2 Teleconferencing system
04/22/1998EP0837587A2 Method and apparatus for selecting car-pool opportunities in a telecommunications network
04/22/1998EP0837388A2 Voice data transmission/storage system
04/22/1998EP0836788A1 Call forwarding in a mobile communication system
04/22/1998EP0836786A1 Method and apparatus for routing traffic in a circuit-switched network
04/22/1998EP0836783A1 Call data-detection method
04/22/1998EP0707732B1 A system for identifying object location
04/22/1998EP0560965B1 Temporary message routing and destination selection
04/22/1998CN2279751Y System apparatus for cutting out malice calling and automatic informing subscriber
04/22/1998CN1179866A Teleworking arrangements
04/22/1998CN1179865A Detecting possible fraudulent communication usage
04/22/1998CN1179665A Trunked radio system
04/22/1998CN1038175C Controller for production management of programcontrolled exchanger
04/21/1998US5742929 Arrangement for comparing subjective dialogue quality in mobile telephone systems
04/21/1998US5742906 Intelligent PBX in-building and out-of-building personal reach communications system
04/21/1998US5742905 Personal communications internetworking
04/21/1998US5742763 For use with a communication network
04/21/1998US5742736 Device for managing voice data automatically linking marked message segments to corresponding applications
04/21/1998US5742675 Method and apparatus for automatically distributing calls to available logged-in call handling agents
04/21/1998US5742674 Automatic call-back system and method using data indicating best time to call
04/21/1998US5742673 Generic service coordination mechanism for solving supplementary service interaction problems in communication system
04/21/1998US5742672 Installation of a multi-terminal network
04/21/1998US5742671 Self-adjusting telephone line status detection indication
04/21/1998US5742670 Passive telephone monitor to control collaborative systems
04/21/1998US5742668 Communication system
04/21/1998US5742667 Notification of toll free call charging status
04/21/1998US5742665 Multifunction adaptive telephone line measurement method and system
04/21/1998US5742596 Network based distributed PBX system
04/21/1998CA2159273C Protection of active telephone line interface circuits
04/21/1998CA2077992C Maintenance termination unit for isdn
04/18/1998CA2216202A1 Peripheral telecommunications hub for personal computer
04/16/1998WO1998016071A1 Method to provide and perform a telephone service
04/16/1998WO1998016055A1 Text communication systems
04/16/1998WO1998016053A1 Arrangement for distributing telephone calls
04/16/1998WO1998016052A2 Preventing misuse of call forwarding service
04/16/1998WO1998016051A1 Network control of telephony services using downloadable applications
04/16/1998WO1998016048A1 Voice-dialing system using model of calling behavior
04/16/1998WO1998015933A2 Method for transmitting data in a telecommunications network and switch for implementing said method
04/16/1998WO1998015887A2 Aggregate information production and display system
04/16/1998WO1998009422A3 System and method for controlled media conversion in an intelligent network
04/16/1998WO1998009236A3 Monitoring of load situation in a service database system
04/16/1998WO1998009235A3 Event recording in a service database system
04/16/1998WO1998009234A3 Event recording in a service database system
04/16/1998WO1998009232A3 Event recording in a service database system
04/16/1998WO1998009231A3 Event recording in a service database system
04/16/1998WO1998009230A3 Event recording in a service database system
04/16/1998WO1998005182A3 Call generator within a mobile telecommunications network
04/16/1998WO1998004092A3 Method and system for assigning a communication to a preferred carrier for accounting and/or communication routing purposes
04/16/1998WO1998003001A3 Process for determining the line status of a transmission line
04/16/1998DE19744412A1 Central exchange trunk test method
04/16/1998DE19645368A1 Verfahren zur Kommunikationseinrichtung zur Übertragung von Daten in einem Telekommunikationsnetz A method of communication device for transmitting data in a telecommunications network
04/16/1998DE19640135A1 Control and programming unit especially for ISDN
04/16/1998CA2268303A1 Aggregate information production and display system
04/16/1998CA2265776A1 Method for transmitting data in a telecommunications network and switch for implementing said method
04/16/1998CA2238890A1 Arrangement for distributing telephone calls
04/15/1998EP0836356A2 Transmission of voice over an asynchronous network
04/15/1998EP0836355A2 Establishment of a flexible rate interface link to restore channels from a failed communication link
04/15/1998EP0836353A2 System for interfacing numerous ISDN data connections to a data network through the telephone network
04/15/1998EP0836339A2 High speed data services for DECT/GSM interworking
04/15/1998EP0836336A2 Coverage of redirected calls
04/15/1998EP0836335A2 Universal telephone system and method
04/15/1998EP0836334A2 Method for initiating a telephone call on a remote line
04/15/1998EP0836324A2 Integrated portable videoconferencing
04/15/1998EP0836313A2 Mobile user terminal with call diversion facility
04/15/1998EP0836312A2 Methods and apparatus for verifying network database query-response transactions
04/15/1998EP0836295A2 Control of a telephone switching system over a digital information network
04/15/1998EP0835596A1 Method of specifying multifunctional subassemblies in a communication system
04/15/1998EP0835595A1 Process of access restriction to a telecommunications network, telecommunications system and unit for such a system
04/15/1998EP0835577A1 Call set-up server
04/15/1998EP0835574A2 Congestion avoidance
04/15/1998EP0835570A1 Detection of loop-back conditions on faulty digital trunks
04/15/1998EP0835563A2 System for coupling telephony signals transmitted through a broadband communications network to a telephony network interface
04/15/1998EP0835552A1 Adaptive gain controller
04/15/1998EP0835494A1 Method and system enabling users to interact, via mutually coupled terminals, by reference to a virtual space
04/15/1998EP0478615B2 Polyphonic coding
04/15/1998CN1179253A Loading softward into field test equipment
04/15/1998CN1179247A Method and apparatus for prividing reminder messages in a communication system
04/15/1998CN1179051A Radio remote mobile telephone controller
04/15/1998CN1179046A Method and system for user distinguishing and/or information enciphering
04/15/1998CA2210832A1 Method and apparatus for pausing and resuming a live speech signal
04/14/1998US5740365 Personal service computer directly connected to communication systems having program structure for generating administration and maintenance instructions and communicating those instructions to respective communication system
04/14/1998US5740241 T1 channel bank control process and apparatus
04/14/1998US5740240 Computer telephony integration system and method
04/14/1998US5740238 Method and apparatus for queuing a call to the best backup split
04/14/1998US5740237 Method and system for a singular activation of a redirection service without general activation of the service
04/14/1998US5740234 Telephone call monitoring method and apparatus
04/14/1998US5740233 System and method for statistical diagnosis of the operation of an automated telephone system
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