| Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881) |
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| 01/06/1994 | WO1994000970A1 Modular notebook computer |
| 01/06/1994 | WO1994000958A1 Method of controlling the traffic in a communications network |
| 01/06/1994 | WO1994000957A1 Method for controlling traffic in a communication network |
| 01/06/1994 | WO1994000945A1 Call distributor |
| 01/06/1994 | WO1994000944A1 Method and apparatus for ringer detection |
| 01/06/1994 | WO1994000941A1 Margin test apparatus for integrated services digital networks |
| 01/06/1994 | WO1994000922A1 Method and apparatus for objective speech quality measurements of telecommunication equipment |
| 01/06/1994 | WO1994000864A1 Surge arrestor fail safe thermal overload mechanism |
| 01/06/1994 | WO1994000856A1 Gas tube vent-safe device |
| 01/06/1994 | WO1994000838A1 Method for recognizing alphanumeric strings spoken over a telephone network |
| 01/06/1994 | CA2139329A1 Gas tube vent-safe device |
| 01/06/1994 | CA2139327A1 Surge arrestor fail safe thermal overload mechanism |
| 01/06/1994 | CA2138774A1 Method for recognizing alphanumeric strings spoken over a telephone network |
| 01/05/1994 | EP0577340A2 Telephone usage monitoring arrangement |
| 01/05/1994 | EP0577332A2 Enhanced automatic call distribution system operation |
| 01/05/1994 | EP0577269A2 Arrangement for bounding jitter in a priority-based switching system |
| 01/05/1994 | EP0577177A1 Telecommunications network with automatic calculation of a polling time -instants table |
| 01/05/1994 | EP0577022A2 A central monitoring system of a multiplexer subscriber loop carrier |
| 01/05/1994 | EP0576883A2 Active surge rejection circuit |
| 01/05/1994 | EP0576864A2 A call processing system |
| 01/05/1994 | EP0576671A1 Telephone exchange system |
| 01/05/1994 | DE4221440A1 Waking alarm call device for telephone network - uses video device at subscriber telephone point allowing entered telephone alarm call time to be displayed |
| 01/05/1994 | DE4221439A1 Hotel telephone system with message announcement facility - uses TV receiver at each telephone point for displaying message on screen |
| 01/05/1994 | CN1080449A Telephone system without recording numbers |
| 01/04/1994 | US5276733 Call generation apparatus |
| 01/04/1994 | US5276732 Remote workstation use with database retrieval system |
| 01/04/1994 | US5276731 Method and apparatus for handling incoming telephone calls |
| 01/04/1994 | US5276727 Remote maintenance method and device thereof in private branch exchange system |
| 01/04/1994 | US5276678 Distributed switching and telephone conferencing system |
| 01/04/1994 | US5276444 Centralized security control system |
| 01/04/1994 | CA2008425C Facsimile service |
| 12/31/1993 | CA2099325A1 Call processing system |
| 12/31/1993 | CA2099307A1 Call processing system |
| 12/31/1993 | CA2094945A1 Enhanced automatic call distribution system operation |
| 12/29/1993 | EP0576410A2 System and method for monitoring communications links |
| 12/29/1993 | EP0576364A1 Universal telephone call transfer device |
| 12/29/1993 | EP0576207A2 An arrangement for dynamically identifying the assignment of a subscriber telephone loop connection at a serving terminal |
| 12/29/1993 | EP0576205A2 Automatic processing of calls with different communication modes in a telecommunications system |
| 12/29/1993 | EP0576141A2 Arrangement for obtaining information from a switching system database by an adjunct processor |
| 12/29/1993 | EP0575369A1 Digital communication system with transmission servers. |
| 12/29/1993 | EP0364444B1 Internal communication system |
| 12/28/1993 | US5274738 Modular digital voice processing system |
| 12/28/1993 | US5274704 Transformer telephone line interface circuit |
| 12/28/1993 | US5274702 For a two-wire telecommunications line |
| 12/28/1993 | US5274700 Methods of automatically rerouting an incoming telephone call placed over a network |
| 12/28/1993 | US5274698 Method of restricting telephone calls in a private branch exchange system |
| 12/28/1993 | US5274696 Protocol for transmitting messages in a network |
| 12/28/1993 | US5274695 System for verifying the identity of a caller in a telecommunications network |
| 12/28/1993 | US5274692 Method for testing the line connection before switching from a telephone switching center to be placed out of service to a new digital telephone switching center to be placed into service |
| 12/28/1993 | US5274524 Programmable protection circuit and its monolithic manufacturing |
| 12/28/1993 | US5274368 Method and apparatus for controlling access to a communication system |
| 12/28/1993 | CA1325686C Method for predictive pacing of calls in a calling system |
| 12/28/1993 | CA1325669C Broadband signal switching matrix network |
| 12/25/1993 | CA2098537A1 Method for the automatic generation of a polling time instants table |
| 12/23/1993 | WO1993026113A1 Service platform |
| 12/22/1993 | EP0575100A1 Patching panel scanner |
| 12/22/1993 | EP0574988A1 Method for user location update in a telecommunication network |
| 12/22/1993 | EP0574523A1 Variable bit rate speech encoder |
| 12/22/1993 | CN1079855A Dynamic callback technique |
| 12/21/1993 | US5272748 Enhanced speed calling |
| 12/21/1993 | US5272698 Multi-speaker conferencing over narrowband channels |
| 12/21/1993 | US5272594 Telephone line overvoltage protection device having aligned, bent terminals supporting a circuit board |
| 12/21/1993 | US5272588 Surge protector |
| 12/21/1993 | US5272526 Television conference system |
| 12/16/1993 | DE4318868A1 Outgoing speech on subscriber line detection appts. - incorporates devices for simultaneous as well as individual signal detection governing distribution of current supply. |
| 12/15/1993 | EP0574147A1 Multiple language capability in an interactive system |
| 12/15/1993 | EP0574138A1 Virtual conferencing system |
| 12/15/1993 | EP0353232B1 Communication services method and apparatus |
| 12/15/1993 | CN2149734Y Graded-service arrangement for long-distance telephone |
| 12/15/1993 | CN2149733Y Joint element for telephone exchange |
| 12/15/1993 | CN1023183C Private telephone system with simplified command feature |
| 12/14/1993 | US5271058 Switchless automatic call distribution system used with a combination of networks |
| 12/14/1993 | US5271003 Internal routing method for load balancing |
| 12/14/1993 | US5270919 Network planning tool |
| 12/14/1993 | US5270701 Service processing system with distributed data bases |
| 12/14/1993 | US5270699 Fault tolerant signaling |
| 12/14/1993 | CA2045693C Satellite based simulcast paging system |
| 12/14/1993 | CA1325298C Voice/data-formatted telephone information storage and retrieval system |
| 12/11/1993 | CA2097627A1 Apparatus to collect calling number identification data (cnid) into a personal computer without the necessity of maintaining the pc in a powered state |
| 12/11/1993 | CA2097626A1 Method for collecting calling number identification data (cnid) into a personal computer without the necessity of maintaining the pc in a powered state |
| 12/09/1993 | WO1993025035A1 Switch reduction for multiple lines of the public telephone network |
| 12/09/1993 | WO1993025026A1 A queueing system for switches having 'fast-circuit' properties |
| 12/09/1993 | WO1993024904A1 Device for managing the presence time and/or working time |
| 12/09/1993 | DE4218376A1 Call diversion device for coupling any telephone terminal - incorporates intermediate circuits in connecting lines between service user's terminals and analogue network |
| 12/09/1993 | CA2114637A1 Device for managing the presence time and/or working time |
| 12/09/1993 | CA2114002A1 A queueing system for switches having "fast-circuit" properties |
| 12/08/1993 | EP0573214A2 Line-based public safety answering point |
| 12/08/1993 | EP0573178A2 ISDN interface |
| 12/08/1993 | EP0572544A1 Integrated application controlled call processing and messaging system. |
| 12/08/1993 | EP0572439A1 Systems and processes for specifying customized telecommunication services |
| 12/08/1993 | CN2149071Y Direct-current high resistance alternating-current low resistance interface component for exchanger user circuit |
| 12/08/1993 | CN2149070Y Duplex carrier telephone local networking entrance-exit automatic exchanger |
| 12/07/1993 | US5268958 Method for allocating incoming-call to extension telephone sets in private branch exchange and private branch exchange having automatic incoming-call allocating function |
| 12/07/1993 | US5268957 Automatic call-back "camp-on" service for communication systems |
| 12/07/1993 | US5268895 Signaling message routing control using composite point code status |
| 12/07/1993 | US5268839 Translation method and system for communication between speakers of different languages |
| 12/01/1993 | EP0572117A2 Maintenance termination unit |
| 12/01/1993 | EP0571503A1 Method and apparatus for controlling access to a communication system |
| 12/01/1993 | EP0571488A1 Configurable parameterized dtmf detector |
| 12/01/1993 | EP0563319A4 Visual programming of telephone network call processing logic |