| Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881) |
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| 08/10/1994 | CN1090693A Method for influencing signalization by use of terminal of communication system |
| 08/09/1994 | US5337354 Tip-ring voltage correction circuit |
| 08/09/1994 | US5337352 Private branch exchange system having an automatic optimal route selecting mechanism |
| 08/09/1994 | US5337351 Feature interaction arbitrator |
| 08/09/1994 | US5337348 Modem pooling system for communicating between a telephone and a plurality of data terminals |
| 08/09/1994 | US5337347 Method and system for progressive database search termination and dynamic information presentation utilizing telephone keypad input |
| 08/09/1994 | US5337344 Telecommunication system and a method for matching the numbering schemes of two telecommunication systems |
| 08/09/1994 | US5337306 Digital tandem channel unit interface for telecommunications network |
| 08/09/1994 | US5337175 Optical communications system for the subscriber area with optical amplifiers |
| 08/09/1994 | US5337045 Pattern generator |
| 08/09/1994 | CA2115088A1 Multi-lingual voice response unit |
| 08/09/1994 | CA1331397C Call appearance reservation arrangement |
| 08/09/1994 | CA1331396C Call service initialization arrangement |
| 08/04/1994 | WO1994017644A1 System for implementing extension phones within a cellular radio telecommunications system |
| 08/04/1994 | WO1994017642A1 A method for assigning speech items in group calls |
| 08/04/1994 | WO1994017641A1 Call completion system and method |
| 08/04/1994 | WO1994017614A1 Switch protection arrangement |
| 08/04/1994 | WO1994017572A1 Gel filled modular electrical connecting block |
| 08/04/1994 | CA2155019A1 Call completion system and method |
| 08/04/1994 | CA2154781A1 Switch protection arrangement |
| 08/04/1994 | CA2129666A1 System for implementating extension phones within a cellular radio telecommunications system |
| 08/03/1994 | EP0609019A1 Improved audio/video telephone communications |
| 08/03/1994 | EP0609016A1 Apparatus and method for providing services prior to call completion in a telecommunication system |
| 08/03/1994 | EP0608654A1 Telephone directing method and apparatus |
| 08/03/1994 | EP0608614A2 System for control of subscriber programmability |
| 08/03/1994 | EP0608613A2 Telephone call based on a dialed suffix |
| 08/03/1994 | EP0608612A2 Telephone call processing arrangement based on party services |
| 08/03/1994 | EP0608279A1 Method for the non-hierarchical routing of traffic in a communications net. |
| 08/03/1994 | CN1090450A A method of dividing the function of a device into a number of subfunctions |
| 08/02/1994 | US5335339 Equipment and method for interactive testing and simulating of a specification of a network system |
| 08/02/1994 | US5335271 Ring trip detection circuit |
| 08/02/1994 | US5335270 Bell signal generating circuit |
| 08/02/1994 | US5335269 Two dimensional routing apparatus in an automatic call director-type system |
| 08/02/1994 | US5335268 Intelligent routing of special service telephone traffic |
| 08/02/1994 | US5335266 Automated telecommunication peripheral system |
| 08/02/1994 | US5335262 Radio communication adapter connected to mobile station and mobile communication system using the radio communication adapter |
| 08/02/1994 | US5335011 Sound localization system for teleconferencing using self-steering microphone arrays |
| 08/02/1994 | CA2036683C Method and apparatus for detecting a transmitted control code for initiating a latching loopback test procedure |
| 08/02/1994 | CA2024941C Composite ringing and coin control voltage detector and method |
| 07/28/1994 | DE4317701C1 Telecommunication system with stored-program control and memory units |
| 07/27/1994 | EP0608066A2 Telecommunications system with active database |
| 07/27/1994 | EP0607615A1 Speech recognition interface system suitable for window systems and speech mail systems |
| 07/27/1994 | EP0607347A1 Method an apparatus for automatic telephone scheduling system |
| 07/27/1994 | CN1090110A Controller for production management of programcontrolled exchanger |
| 07/26/1994 | US5333317 Name resolution in a directory database |
| 07/26/1994 | US5333266 Method and apparatus for message handling in computer systems |
| 07/26/1994 | US5333195 Telephone network speech signal enhancement |
| 07/26/1994 | US5333188 Dialed number recognition arrangement |
| 07/26/1994 | US5333186 Telecommunication call billing method and apparatus |
| 07/26/1994 | US5333185 System for processing calling party information for international communications services |
| 07/26/1994 | US5333184 Call message recording for telephone systems |
| 07/26/1994 | US5333183 Universal MDR data record collection and reporting system |
| 07/26/1994 | US5333182 Arbitrary selecting of a terminal to be called in key telephone systems |
| 07/26/1994 | US5333181 System for accessing amenities through a public telephone network |
| 07/26/1994 | US5333180 Call message delivery system and method utilizing caller-selected system announcements |
| 07/26/1994 | US5333173 Personal checkup service and equipment |
| 07/26/1994 | US5333133 Call processing control system |
| 07/26/1994 | US5332397 Telecommunications adapter |
| 07/26/1994 | CA2027813C Method and apparatus for controlling a digital crossconnect system from a switching system |
| 07/26/1994 | CA2002690C Automated message retrieval system |
| 07/26/1994 | CA1331038C Automatically resetting protection arrangement for a telephone subscriber line interface circuit |
| 07/21/1994 | WO1994016528A1 Telecommunication switch with programmable communications services |
| 07/21/1994 | WO1994016517A1 Sound localization system for teleconferencing using self-steering microphone arrays |
| 07/21/1994 | WO1994016516A1 Wireless digital personal communications system |
| 07/21/1994 | WO1994016515A1 Telephone network performance monitoring method and system |
| 07/21/1994 | CA2153678A1 Telephone network performance monitoring method and system |
| 07/20/1994 | EP0606728A2 Path hunt for efficient broadcast and multicast connections in multi-stage switching fabrics |
| 07/20/1994 | EP0606720A2 Name translation in communications networks |
| 07/20/1994 | EP0606719A1 Arrangement for automating call-center agent-schedule-notification and schedule-adherence functions |
| 07/20/1994 | EP0606353A1 Congestion tuning of telecommunications networks |
| 07/20/1994 | EP0606282A1 Method for realising a group call in a digital radio network |
| 07/19/1994 | US5331633 Hierarchical bus type multidirectional multiplex communication system |
| 07/19/1994 | US5331628 Path testing and/or monitoring within a multiple node telecommunication system |
| 07/19/1994 | US5331509 Modular notebook computer having a planar array of module bays and a pivotally attached flat-panel display |
| 07/19/1994 | CA2004170C Acoustic calibration arrangement for a voice switched speakerphone |
| 07/13/1994 | EP0606041A1 Method of using telephone system to transmit certified messages |
| 07/13/1994 | EP0605960A1 A technique for reducing echoes in conference communications |
| 07/13/1994 | EP0605454A1 Pstn architecture for video-on-demand services |
| 07/12/1994 | US5329589 Mediation of transactions by a communications system |
| 07/12/1994 | US5329584 Interface circuit to quickly establish a loop current |
| 07/12/1994 | US5329583 Enhanced automatic call distribution system operation |
| 07/12/1994 | US5329582 Dynamic tone-administration |
| 07/12/1994 | US5329581 Target area calling system |
| 07/12/1994 | US5329579 Modular adjunct processor made of identical multi-function modules adaptable under direction of one of them to perform any of the adjunct-processor functions |
| 07/12/1994 | US5329578 Personal communication service with mobility manager |
| 07/12/1994 | US5329572 Dial-up switching and transmission of broadband communication channels through a local exchange |
| 07/12/1994 | US5329570 Copy protection of software for use in a private branch exchange switch |
| 07/12/1994 | US5329523 Extension agent system of ISDN electronic exchange |
| 07/12/1994 | US5329520 High-speed facility protection in a digital telecommunications system |
| 07/12/1994 | US5329308 Bidirectional video telephony between cable television and switched telephone systems |
| 07/07/1994 | WO1994015431A1 Mobile telecommunications system |
| 07/07/1994 | WO1994015429A1 Method and arrangement for testing services in a telecommunications system |
| 07/07/1994 | WO1994015428A1 Computer-based classified ad system and method |
| 07/07/1994 | WO1994015294A1 Interactive computer system with multi-protocol capability |
| 07/07/1994 | WO1994006236A3 Personal number communications system |
| 07/06/1994 | EP0605349A2 Switched circuit connection management over public data networks for wide area networks |
| 07/06/1994 | EP0605311A1 Method for transmitting data between communication equipments connected to a communication infrastructure |
| 07/06/1994 | EP0605166A1 Voice response script generator system and method |
| 07/06/1994 | EP0604610A1 Coin/card operated public telephone and its controlling method |
| 07/05/1994 | US5327493 Device for detecting tones on telephone lines |