| Patents for H04Q 3 - Selecting arrangements (38,975) |
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| 08/14/1986 | WO1986004740A2 Processing sequence calls in a distributed control switching system |
| 08/12/1986 | US4605928 Fault-tolerant array of cross-point switching matrices |
| 08/12/1986 | US4605825 Function key assignments in a key telephone system |
| 08/12/1986 | US4605824 Circuit arrangement for telecommunication exchange systems, particularly telephone exchange systems with switch facilities for emitting signals |
| 08/05/1986 | US4604741 Voice and data interface circuit |
| 07/31/1986 | WO1986004472A1 Three relay c.o. trunk interface |
| 07/29/1986 | US4603235 Dynamic event selection network |
| 07/23/1986 | EP0188117A1 System for adjusting signal transmission timing in time-division multiplexing signal transmission |
| 07/23/1986 | EP0187945A2 Method for the transmission of signals between a data exchange and a telephone exchange, especially a private branch exchange |
| 07/22/1986 | US4602132 Key telephone system |
| 07/22/1986 | US4602128 Automatic redialing arrangement for multi-line telephone station sets |
| 07/16/1986 | EP0187339A2 Low power line driving digital transmission system |
| 07/16/1986 | CN85108417A Apparatus and method for providing dynamically assigned switch paths |
| 07/15/1986 | US4601029 Communication switching system |
| 07/15/1986 | US4600813 Line concentrator |
| 07/15/1986 | US4600812 Communication system having abbreviated dialing access |
| 07/15/1986 | CA1207877A1 Self-routing steering network |
| 07/15/1986 | CA1207876A1 Distributed prioritized concentrator |
| 07/15/1986 | CA1207875A1 Communications switching system |
| 07/09/1986 | EP0186770A2 Circuit arrangement for telecommunication exchanges, especially telephone exchanges, with subexchanges connected to exchanges via line bundles |
| 07/08/1986 | CA1207418A1 Self-routing switching network |
| 07/08/1986 | CA1207415A1 Switching matrix network |
| 07/08/1986 | CA1207414A1 Acd management information system |
| 07/02/1986 | EP0186595A2 Routing technique |
| 07/02/1986 | EP0186589A2 Routing element |
| 07/02/1986 | EP0186142A2 Two wire bidirectional digital transmission system |
| 07/02/1986 | EP0186139A2 Time division multiplexing RAM |
| 07/02/1986 | EP0186132A2 Digital switching system |
| 07/02/1986 | EP0186131A2 Digital switching system with two-directional addressing rams |
| 07/02/1986 | EP0185929A2 Circuit arrangement for telecommunication exchanges, especially telephone exchanges, with subexchanges connected to exchanges via line bundles |
| 07/01/1986 | US4598173 Interface circuit for a subscriber line circuit |
| 06/25/1986 | EP0185260A2 Interface for direct information transfer |
| 06/24/1986 | US4596984 Digital data input circuit |
| 06/24/1986 | CA1206646A1 Loop-circuit for telephone line |
| 06/19/1986 | WO1986003644A1 An arrangement in a telephone exchange |
| 06/19/1986 | WO1986003639A1 Queueing protocol |
| 06/18/1986 | EP0184826A2 Command processor, use as a switch controller, and a method of operating the same |
| 06/18/1986 | EP0184774A2 Memory arrangement and a switching stage comprising a memory arrangement for the establishment of dynamic connecting routes |
| 06/17/1986 | US4596013 Data transmission network |
| 06/17/1986 | US4595800 Key telephone system |
| 06/17/1986 | US4595796 Method of and a circuit arrangement for determining current criteria in the lines of a telephone system |
| 06/17/1986 | CA1206283A1 Subscriber telephone system |
| 06/17/1986 | CA1206241A1 Remotely controlled crossconnection system |
| 06/17/1986 | CA1206240A1 Modular self-routing pcm switching exchange with virtual channel routing control for distributed control telephone exchanges |
| 06/10/1986 | US4594477 PBX equipment with dial signal modification |
| 06/10/1986 | CA1205933A1 Interface circuit for remote control of a pabx |
| 06/10/1986 | CA1205892A1 Optical beam switching device and telephone exchange comprising a device of this kind |
| 06/10/1986 | CA1205890A1 Apparatus for loading memories in a telecommunication exchange |
| 06/05/1986 | WO1986003359A1 Automatic redialing arrangement for multi-line telephone station sets |
| 06/04/1986 | EP0183549A2 Subscriber line signalling device for use in a telecommunications system |
| 06/04/1986 | EP0182798A1 Digital timeslot and signaling bus in a digital pbx switch |
| 06/03/1986 | US4593387 Time division switching system |
| 06/03/1986 | CA1205588A1 Telephone line interface circuit |
| 05/27/1986 | US4591665 Method and apparatus for providing call tracing service |
| 05/27/1986 | CA1205169A1 Pulse code modulated digital automatic exchange |
| 05/20/1986 | CA1204881A1 Hyper-edged entity-relationship data base systems |
| 05/20/1986 | CA1204845A1 Modular self-routing pcm switching network for distributed control telephone exchanges |
| 05/14/1986 | EP0091932B1 Telephone switching control arrangement |
| 05/09/1986 | WO1986002795A1 Interswitch line circuit |
| 05/07/1986 | EP0179812A1 Circuit for maintaining the dc voltage on an electrically isolated telecommunication line at a reference level. |
| 05/06/1986 | CA1204239A1 Borsht/slic auto balancing technique |
| 05/06/1986 | CA1204237A1 Keyboard security for a telephone attendant console |
| 04/29/1986 | US4585905 Overvoltage protection circuit for SLIC |
| 04/23/1986 | EP0178993A2 Front end circuit structure for a subscriber line circuit interface |
| 04/16/1986 | EP0177735A2 Circuit arrangement for telecommunication installations, especially for telephone exchanges with centralized and/or decentralized information-processing devices |
| 04/15/1986 | US4583221 Synchronization system for key telephone system |
| 04/15/1986 | US4583214 Key telephone transmission system |
| 04/10/1986 | WO1986002226A1 Trunk call processing services for host computer interconnections |
| 04/10/1986 | WO1986002225A1 Telephone switching system switch processor interface |
| 04/10/1986 | WO1986002219A1 Telephone switching system adjunct call processing arrangement |
| 04/09/1986 | EP0177219A2 Origination scan circuit |
| 04/09/1986 | EP0177218A2 Method and apparatus for sharing operators among assistance systems |
| 04/09/1986 | EP0176764A2 Circuit arrangement for telecommunication installations, especially for telephone exchangs with centralized and/or decentralized information-processing devices |
| 04/09/1986 | EP0176526A1 Arrangement for transferring digital data |
| 04/08/1986 | CA1203025A1 Parity checking arrangement |
| 04/02/1986 | EP0176437A2 Communication switching system |
| 04/02/1986 | EP0176291A2 Key telephone system with distributed control |
| 04/02/1986 | EP0175707A1 Telephone system port communication method and apparatus |
| 04/01/1986 | US4580292 Communications exchange |
| 04/01/1986 | US4580011 Distributed processing telephone switching system |
| 04/01/1986 | CA1202742A1 Loop-start/ground-start line interface circuit |
| 03/26/1986 | EP0174947A1 Communication system having dynamically assigned station set buttons |
| 03/25/1986 | US4578541 Telephone line interface circuit |
| 03/19/1986 | EP0035546B1 Peripheral unit controller |
| 03/18/1986 | US4577310 Station interface for digital electronic telephone switching system having centralized digital audio processor |
| 03/18/1986 | US4577066 Telephone interexchange call routing |
| 03/18/1986 | CA1202118A1 Multiprocessor control |
| 03/11/1986 | US4575839 Centralized supervisory system |
| 03/11/1986 | US4575583 Programmable digital controller for generating instructions |
| 03/11/1986 | CA1201809A1 Method of an apparatus for generating a plurality of electric signals |
| 03/05/1986 | EP0173264A2 Method for a programme-controlled telephone exchange, especially a private exchange, wherein several service signals may be activated by an authorized subscriber set |
| 03/05/1986 | EP0172980A1 An arrangement for the generation of information and/or an instruction intended for input to the program memory of a computer |
| 02/27/1986 | WO1986001358A1 Method for identifying calling or called terminals and device for implementing such a method |
| 02/25/1986 | US4573047 Binary selector stage and a selector and selector system comprising such selector stages |
| 02/25/1986 | CA1201189A1 Pcm switching units |
| 02/19/1986 | EP0171784A2 Circuit arrangement for telecommunication installations, in particular telephone exchanges with centralized and/or decentralized information-processing control circuits |
| 02/19/1986 | EP0171761A2 Circuit arrangement for telecommunication installations, especially for telephone exchanges comprising information processors and traffic load counters |
| 02/19/1986 | EP0171692A2 Subscriber line circuit |
| 02/18/1986 | US4571721 Composite concentration system |
| 02/18/1986 | CA1200938A1 Voice and data interface circuit |