Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881) |
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09/20/1995 | EP0673141A2 Telecommunication terminal |
09/20/1995 | EP0632910B1 Programme-controlled isdn switching system with a program module constructed in accordance with the principles of object-oriented programming for the handling of switched calls |
09/20/1995 | EP0427760B1 Method and apparatus for accessing a facsimile store and forward network |
09/20/1995 | CN1108870A Cabinet and position allocation |
09/19/1995 | US5452353 Personal dialing apparatus |
09/19/1995 | US5452351 Electronic private branch exchange having an LCR function and a method of accessing a particular common carrier in that exchange |
09/19/1995 | US5452350 Subscriber call routing processing system |
09/19/1995 | US5452349 Call forwarding control system for ISDN |
09/19/1995 | US5452348 Automatic call distribution system with emergency conferencing and method |
09/19/1995 | US5452347 Dual-line telephone bridging device that gives remote telephones access to communications features |
09/19/1995 | US5452345 Metering signal level control circuit |
09/19/1995 | US5452341 Integrated voice processing system |
09/19/1995 | US5452339 Local/remote modification of electronically alterable operating system firmware resident in redundant flash memory of remote unit for testing/conditioning subscriber line circuits |
09/19/1995 | US5452298 Digital conference trunk system |
09/19/1995 | US5452289 Computer-based multifunction personal communications system |
09/19/1995 | US5452286 Digital transmission apparatus for subscribers having switching function from active transmission line to protection transmission line |
09/14/1995 | WO1995024803A1 Telecommunications switch with improved redundancy |
09/14/1995 | WO1995024802A1 Bandwidth management in a switched telecommunications network |
09/14/1995 | WO1995024791A1 Methods and apparatus for communicating data via a cellular network control channel |
09/14/1995 | WO1995024788A2 Expandable telecommunications system |
09/14/1995 | WO1995024714A1 Removable pointer device |
09/14/1995 | WO1995022218A3 Private exchange for isdn |
09/13/1995 | EP0671843A1 Communication apparatus for use with public telephone network |
09/13/1995 | EP0671840A2 Method for recognizing spelled names or terms for communication exchanges |
09/13/1995 | EP0671830A2 Secure communication apparatus and method |
09/13/1995 | EP0671721A2 Communication system |
09/13/1995 | EP0671098A1 Network termination unit |
09/13/1995 | EP0671043A1 Telephone network voice recognition and verification using selectively-adjustable signal thresholds |
09/13/1995 | CN1108463A Subscriber services arrangement for mobile telecommunications system providing pabxaccess |
09/13/1995 | CN1108449A System and method to identify the terminating directory number at the customer premises |
09/12/1995 | US5450569 Method for the visualization of logged information in a communication system |
09/12/1995 | US5450524 For enrolling and recognizing user spoken passwords |
09/12/1995 | US5450488 Multiple service voice messaging system |
09/12/1995 | US5450487 Arrangement for the control of an echo canceller |
09/12/1995 | US5450486 Telecommunication system and a linecard |
09/12/1995 | US5450483 Method of controlling overloads in a telecommunications network |
09/12/1995 | US5450482 Dynamic network automatic call distribution |
09/12/1995 | US5450481 Conference call participation tracking |
09/12/1995 | US5450480 Method of creating a telecommunication service specification |
09/12/1995 | US5450476 Method and system for providing nonpublished number messaging service |
09/12/1995 | US5450475 Method for controlling electronic telephone switches |
09/12/1995 | US5450470 Script generator and process for programming automated TDD telephone system application |
09/12/1995 | US5450469 Subscriber interface box |
09/12/1995 | US5450468 Method of rapidly assessing damage to outside loop plant |
09/12/1995 | US5450440 Monitor system for digital communication apparatus |
09/12/1995 | US5450396 Communication system and a private branch exchange to be used in such a communication system |
09/12/1995 | US5450123 Method to enhance voice communications using encoded one-way video signals under bi-directional user or network control for transmitting stored or real-time video or image information |
09/12/1995 | CA2045027C Control and interface apparatus for telephone systems |
09/10/1995 | CA2143997A1 Apparatus for detecting existence of a telephone line connection in a data access arrangement and method for same |
09/08/1995 | WO1995024103A2 Accomplishing a register recall in a radio system |
09/08/1995 | WO1995024092A1 Method and apparatus for reliable access to audio and facsimile message storage and retrieval system |
09/08/1995 | WO1995024090A2 Tracing with keys and locks on a telecommunication network |
09/08/1995 | CA2183059A1 Tracing with keys and locks on a telecommunication network |
09/07/1995 | DE4406602A1 Security system for identification and authentication of communication partners |
09/07/1995 | DE4406590A1 Caller authentication system for telecommunication networks e.g. in home banking, shopping |
09/06/1995 | EP0670649A2 Group exchange port (GXP) |
09/06/1995 | EP0670097A1 Method for establishing connection between communication devices |
09/06/1995 | EP0670094A1 Telephone call handling system |
09/05/1995 | US5448720 Information processing system for obtaining status data of a simplex system by a standby system of a duplex system |
09/05/1995 | US5448663 Optical coupler |
09/05/1995 | US5448633 Telecommunications system for controlling access to a destination |
09/05/1995 | US5448632 Call monitoring system for intelligent call processing |
09/05/1995 | US5448631 Apparatus for handling features in a telephone network |
09/05/1995 | US5448627 Telephone apparatus with call forwarding arrangement |
09/05/1995 | US5448626 Facsimile mail system having means for storing facsimile signals and telephone signals |
09/05/1995 | US5448625 Telephone advertising method and apparatus |
09/05/1995 | US5448624 Telephone network performance monitoring method and system |
09/05/1995 | US5448618 Emergency mobilization system |
09/05/1995 | US5448617 Method of processing intelligent network service call with DTMF subscriber signalling in electronic switching system for toll/tandem |
09/05/1995 | US5448574 Detection system for abnormal cable connections in communication apparatuses |
09/05/1995 | CA2055171C Telephone network credit card calling apparatus and method of operation |
08/31/1995 | WO1995023484A1 Method and apparatus for delivery of a response in a messaging system |
08/31/1995 | WO1995023483A1 Service provision in communications networks |
08/31/1995 | WO1995023478A1 A telephone communication system having a locator |
08/31/1995 | WO1995023475A2 Call control in a telecommunication system |
08/31/1995 | WO1995023473A2 Method to identify clients and method for using a teleterminal device |
08/31/1995 | WO1995023455A1 Switching device for telecommunications channel |
08/31/1995 | WO1995020855A3 Optimizing the capacity of a telecommunication system |
08/31/1995 | DE4419040C1 Communication connection detection system for global satellite mobile communications network |
08/31/1995 | CA2183642A1 Switching device for telecommunications channel |
08/30/1995 | EP0669773A2 Communication system with personal computers and wireless telephone system connected to communication equipment |
08/30/1995 | EP0669772A2 Connections between a toll network and multiple local networks |
08/30/1995 | EP0669771A1 Message interceptor for a signalling network |
08/30/1995 | EP0669764A1 Multipoint video teleconferencing apparatus and system using the same |
08/30/1995 | EP0669749A1 Noncompressed voice and data communication over modem for a computer-based multifunction personal communications system |
08/30/1995 | EP0669748A2 Service delivery using broadband |
08/30/1995 | EP0669747A2 Integratable circuit arrangement for disturbance resistant detection of the unhooked condition in telephone systems |
08/30/1995 | EP0669744A2 Telephone line universal circuit |
08/30/1995 | EP0669067A1 Establishing telecommunications call paths in broadband communication networks. |
08/30/1995 | EP0669061A1 An apparatus and method for detecting potentially fraudulent telecommunication activity |
08/30/1995 | EP0669054A1 Communications channel testing arrangement |
08/30/1995 | EP0669031A1 Mobile telephone systems and a method for carrying out financial transactions by means of a mobile telephone system. |
08/29/1995 | US5446786 Two-wire telecommunications line detection arrangements |
08/29/1995 | US5446725 Method of changing over path switch in optical transmission device |
08/29/1995 | CA2055803C Telephone line unit having programmable read-only memory |
08/29/1995 | CA2055176C Message service control system |
08/29/1995 | CA1336840C Automated interactive mass communications system |
08/24/1995 | WO1995022874A1 Method and circuit arrangement for producing telecommunication connections |
08/23/1995 | EP0668705A2 System for detecting the operation of a digital telecommunications network |
08/23/1995 | EP0668687A1 An apparatus for generating a metering signal in a communication system |