H04M 3 - Automatic or semi-automatic exchanges

Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881)
01/1993
01/20/1993	EP0523626A1 Multipoint teleconference system employing communication channels set in ring configuration
01/20/1993	EP0523618A2 Picture codec and teleconference terminal equipment
01/20/1993	CN1068229A Telephone circuit assembly with hook-off detector circuit
01/19/1993	US5181239 Call tagging user information in a telephonic environment
01/19/1993	US5181238 Authenticated communications access service
01/19/1993	US5181237 Automation of telephone operator assistance calls
01/19/1993	US5181236 Automatic call returning method for call distributor with message record capability
01/17/1993	CA2071191A1 Multi-function telephone apparatus and control method
01/13/1993	EP0522895A1 Communication control apparatus
01/13/1993	EP0522725A2 Voice messaging system with voice activated prompt interrupt
01/13/1993	EP0522193A1 Digital switching network
01/12/1993	US5179627 Digital dictation system
01/12/1993	US5179589 Call progress pacing
01/12/1993	US5179585 Integrated voice messaging/voice response system
01/12/1993	CA1312665C Call traffic control
01/07/1993	WO1993000776A1 Application modularity in telecommunications exchanges
01/07/1993	WO1993000763A1 Telephone marketing system
01/06/1993	CN1067774A Method for performing continuity check in electronic exchange system
01/05/1993	US5177785 Method and system for secure telecommunications
01/05/1993	US5177780 Method of voice mail notification for cellular telephone systems
01/05/1993	CA1312394C Carrier independent network services
01/05/1993	CA1312366C Automatic call distribution (acd) switching system having distributed processing capability
12/1992
12/30/1992	EP0520688A2 Method of rerouting telecommunications traffic
12/30/1992	EP0520483A1 Method and arrangement for establishing telephone connections
12/30/1992	EP0520215A2 Annotation in a communication system with redialing
12/30/1992	EP0520194A2 Personal telecommunication system
12/30/1992	EP0520171A1 Subscriber line interface circuit with an off-hook detection circuit
12/29/1992	US5175761 Call transfers by voice messaging system (VMS) integrated to a private branch exchange
12/29/1992	US5175662 Device including an MTU and protector
12/29/1992	CA2069727A1 Personal telecommunications system
12/29/1992	CA1312132C Telephone exchange including service feature apparatus
12/29/1992	CA1312131C Electronic telephone apparatus able to supply sync clock signals reliably, and method of controlling the supply of sync clock signals
12/28/1992	CA2072312A1 Audience participation system
12/23/1992	WO1992022937A1 High isolation switch
12/23/1992	EP0519563A2 System for converting synchronous time-division-multiplex signals into asynchronous time-division data packets
12/22/1992	US5173899 Tdma communications network of transmitting information between a central station and remote stations
12/22/1992	US5173896 T-carrier network simulator
12/17/1992	DE4139460C1 Testing procedure for selected functions of communication system - simulating fault condition and restarting control program only if results are those expected
12/16/1992	EP0517942A1 Method for modifying a signalisation procedure implemented in a telecommunication terminal
12/15/1992	US5172409 Precision FET control loop
12/15/1992	US5172406 Dtmf signal detection apparatus
12/15/1992	US5172404 System for coupling telephone answering device and voice mail apparatus together
12/15/1992	CA1311570C Apparatus for testing spare line circuits in a communication system
12/15/1992	CA1311545C Call waiting arrangement
12/15/1992	CA1311544C Circuit for putting in conference a plurality of participants in telecommunication systems
12/10/1992	WO1992022165A1 Voice services equipment
12/10/1992	WO1992022164A1 Hunt and seek telephone system
12/09/1992	EP0517442A2 Transferring lines in a digital SLC system
12/09/1992	EP0517268A2 Method for load distribution in communication systems
12/09/1992	EP0516651A1 Method and system for establishing link with wireless telephone
12/08/1992	US5170429 Portable telecommunications test instrument with a talk battery circuit
12/08/1992	US5170272 Subscriber terminal installation for an asynchronous network
12/07/1992	WO1992022151A1 Communications network and method
12/02/1992	EP0516459A2 Facsimile server with manual call release emulation
12/02/1992	EP0515703A1 Broadband conference system
12/02/1992	CN1019349B Terminal system for service desk of numerically program-controlled exchanger
12/01/1992	US5168515 Switchless automatic call distribution system
12/01/1992	CA1311067C Customer line tester
11/1992
11/26/1992	WO1992021211A1 A multiple medium message recording system
11/25/1992	EP0515296A1 Process and apparatus for managing network event counters
11/25/1992	EP0515277A1 Modular traffic analyser of digital signals
11/25/1992	EP0515241A1 Telephone conference system
11/25/1992	EP0515068A2 Automated voice system for improving agent efficiency and for improving service to parties on hold
11/25/1992	CN2123151U Toll controller for telephone private branch exchange
11/24/1992	US5166974 Interactive call processor to facilitate completion of queued calls
11/24/1992	US5166971 Method for speaker recognition in a telephone switching system
11/24/1992	US5166970 Multi-conductor identifier with voice communication capability
11/24/1992	US5166925 T carrier network test apparatus and method
11/24/1992	CA1310732C Routing of network traffic
11/24/1992	CA1310731C Exchange system having originating call restriction function
11/24/1992	CA1310730C Electronic switching system having call-forwarding function
11/24/1992	CA1310729C Enhanced dedicated teleconferencing system
11/24/1992	CA1310727C Communication network system and method of controlling a communication network
11/24/1992	CA1310726C Adaptive routing of network traffic
11/19/1992	EP0514076A2 Communication apparatus for connection to a public switched telephone network
11/19/1992	EP0513807A2 Switchboard terminal apparatus having a plurality of loop circuits
11/19/1992	EP0513101A1 Telecommunications line test system
11/17/1992	US5165095 Voice telephone dialing
11/17/1992	US5164983 Telemarketing complex performance management system
11/17/1992	US5164982 Telecommunication display system
11/17/1992	US5164981 Voice response system with automated data transfer
11/17/1992	CA1310390C Telephone line communications control system
11/12/1992	WO1992020151A1 Interface circuit for telephone exchange installations
11/11/1992	EP0512787A2 Automatic communications device disablement
11/11/1992	EP0512786A2 Integration of wireless paging in a communication system
11/11/1992	EP0512704A2 Emergency call station identification system and method
11/11/1992	CA2063359A1 Automatic communications device disablement
11/10/1992	WO1992020175A1 Method and apparatus for translating signaling information
11/10/1992	US5163090 Over-current verifier circuit for an enhanced subscriber line interface
11/10/1992	US5163087 Delivery of customer data base key using automatic number identification
11/10/1992	US5163085 Digital dictation system with voice mail capability
11/10/1992	US5163084 Voice information service system and method utilizing approximately matched input character string and key word
11/10/1992	US5163083 Automation of telephone operator assistance calls
11/10/1992	US5163081 Telecommunications system
11/10/1992	US5163080 Voice messaging
11/10/1992	US5163079 Analog/digital telephone test set
11/10/1992	US5163050 Configurable parameter dtmf detector
11/10/1992	US5163042 Exchange route decision system and method
11/10/1992	US5162792 On-the-fly arrangement for interconnecting leads and connectors
11/10/1992	CA2109214A1 Method and apparatus for translating signaling information

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