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)
06/1995
06/28/1995EP0659325A1 Cordless telephone system with different ringing patterns
06/28/1995EP0659320A1 Communication channel switching arrangement
06/28/1995CA2135949A1 Revertive calling automatic call distributor
06/27/1995US5428679 Automated service assurance method and system
06/27/1995US5428678 Telephone calling method and apparatus
06/27/1995US5428670 Communications marketing system
06/27/1995US5428667 Multi-channel cellular communications intercept system
06/27/1995US5428663 Incoming communications forwarding technique utilizing a called party location indicator
06/27/1995US5428662 Detecting make-break clicks on a telephone line
06/27/1995US5428661 Terminating call control method and system therefor in a digital switching unit used with subscriber groups
06/27/1995US5428608 Call connection technique
06/27/1995US5428606 Digital information commodities exchange
06/27/1995US5428604 Training method for an echo canceller for use in a voice conference system
06/27/1995US5427547 Gel filled modular electrical connecting block
06/27/1995CA2064813C Call completion system
06/24/1995CA2138743A1 Method for coupling a subscriber terminal equipment unit to an existing call
06/22/1995WO1995017069A1 Telephone messaging system
06/22/1995EP0685119A4 Telecommunications terminal block.
06/22/1995DE4445734A1 Overload control for main processor of distributed communication system
06/22/1995DE4343657A1 Dialling system call forwarding appts.
06/22/1995CA2179185A1 Network updating arrangement
06/21/1995EP0659006A2 Audio conferencing system
06/21/1995EP0659005A2 A method of displaying multiple time series
06/21/1995CN1104011A Telecommunications system sequence calling
06/21/1995CN1029064C Automated audio/visual presentation
06/21/1995CN1029061C Alarm and test system for digital added main line
06/20/1995US5426695 Ringing signal control circuit capable of suppressing surge voltage
06/20/1995US5426694 Telecommunication switch having programmable network protocols and communications services
06/20/1995US5426693 Apparatus and method for automatically blocking the transmission of identifying information concerning a telephone calling party
06/20/1995US5426688 Telecommunication alarm method and system
06/20/1995US5426556 Extra protection module of an exchange
06/15/1995WO1995016321A1 System and method for providing advanced intelligent network services
06/14/1995EP0658063A2 A signaling system for broadband communications networks
06/14/1995EP0658061A2 Signalling system for independent communications networks
06/14/1995EP0658035A2 System and method for providing selected video images to local telephone stations
06/14/1995EP0658034A2 Circuit for call-forwarding
06/14/1995EP0658033A2 Private branch exchange
06/14/1995EP0658032A1 Location identification in a communications signalling network
06/14/1995EP0658031A1 Remote feeding circuit in communication systems
06/14/1995EP0657810A1 User-definable interactive system
06/14/1995EP0657741A2 Cable management system with remote line testing through switch
06/14/1995EP0657076A1 Personal number communications system
06/14/1995DE4444156A1 Controlling overload of distributed processors of exchange system
06/14/1995DE4416083A1 Verfahren zur Erzeugung einer Rufankündigungsnachricht A method for generating a call termination message
06/13/1995US5425129 Method for word spotting in continuous speech
06/13/1995US5425097 Analog display station apparatus and method of effecting telephone features
06/13/1995US5425093 System for integrating a stand alone inbound automatic call distributor and a outbound automatic call dialer
06/13/1995US5425092 In a telecommunications system
06/13/1995US5425091 Method and system for providing an automatic customer callback service
06/13/1995US5425090 System and method for providing advanced intelligent network services
06/13/1995US5425089 Low cost telephone caller identification device and method
06/13/1995US5425087 Telephone usage monitoring arrangement
06/13/1995US5425086 Load control system for controlling a plurality of processes and exchange system having load control system
06/13/1995US5425082 Communication processing apparatus, communication processing system, and communication processing method
06/13/1995US5425081 Facsimile arrangement
06/13/1995US5425078 Voice message keepsake system
06/13/1995US5425075 Multipurpose analog telephony channel test facility method and apparatus
06/13/1995US5425019 Call accommodation system containing emergent calls and normal calls
06/11/1995CA2135329A1 Method of displaying multiple time series
06/09/1995CA2110943A1 Secure whisper call announcement
06/08/1995WO1995015649A1 Electronic book selection and delivery system
06/08/1995WO1995015643A1 Voice enhancement system and method
06/08/1995WO1995015550A1 Transmitted noise reduction in communications systems
06/08/1995CA2459529A1 Electronic book selection and delivery system
06/08/1995CA2459069A1 System and method for accumulating electronic book buy data
06/08/1995CA2459063A1 Electronic book menu system and method
06/08/1995CA2458379A1 Electronic book home system
06/08/1995CA2458355A1 Electronic book 4-component home subsystem
06/08/1995CA2458352A1 Electronic book 2-component home subsystem
06/08/1995CA2458258A1 Insertion of advertisements into on-demand electronic books
06/08/1995CA2133943A1 Cable management system with remote line testing through switch
06/07/1995EP0656718A2 Dual port interface for a computer-based multifunction personal communication system
06/07/1995EP0656717A1 Automatic location identification and call forwarding techniques
06/06/1995US5423068 Method of managing, in a telecommunication network, user data of a user who may move from a base work area associated with a base exchange to another work area associated with another exchange
06/06/1995US5422950 Remote terminal channel unit for telephone transmission lines
06/06/1995US5422948 Subscriber line interface for improving the frequency characteristics of the transmitted and received signals
06/06/1995US5422944 Attendant console sharing system and method in centrex
06/06/1995US5422943 Private branch exchange networks
06/06/1995US5422941 Extension of centrex services
06/06/1995US5422940 Global subscriber group service system
06/06/1995US5422937 Remotely controlled telephone operator simulator
06/06/1995US5422936 Enhanced message service indication
06/06/1995US5422883 Call setup and channel allocation for a multi-media network bus
06/06/1995US5422777 Low capacitance protection circuit for telephone equipment
06/03/1995CA2117934A1 Automatic location identification and call forwarding techniques
06/01/1995WO1995015048A1 Arrangement for sharing a telephone office code
06/01/1995WO1995015047A2 Audio and video subsystems for computer-based conferencing system
06/01/1995WO1995015046A1 Exchange of information between interconnected voicemail systems
06/01/1995WO1995015045A1 Method and system for providing nonpublished number messaging service
06/01/1995WO1995015035A1 Method and apparatus for testing telecommunications equipment
06/01/1995WO1995014965A1 Modular portable computer
06/01/1995DE4441753A1 Semi-permanent storage of service profile data in GSM mobile telephone personal communication system
06/01/1995CA2171864A1 Method and apparatus for testing telecommunications equipment
05/1995
05/31/1995EP0655870A2 Service execution in a communications system
05/31/1995EP0655851A1 Call earsdropping arrangement
05/31/1995EP0655848A2 Automatic gain control circuit for a digital baseband line equalizer
05/31/1995CN2199648Y Program-controlled telephone centralised arrangement
05/31/1995CN1103243A Method of informing a subscriber in a radio telephone system of facilities activated for the subscriber station
05/31/1995CN1103219A System and method for communicating with travelers
05/31/1995CA2131349A1 Connection of mobile devices to heterogenous networks
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