| Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881) |
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| 04/10/1994 | CA2103869A1 Telecommunications system ss7 signaling interface with loose coupling to its host |
| 04/10/1994 | CA2103868A1 Telecommunications system with redundant ss7 signaling interfaces |
| 04/07/1994 | DE4233066A1 Mobile telephone appts. with soft-keys for selection and display - can show type and status of message or identification of caller who could be listed in accordance with scrolling system |
| 04/06/1994 | EP0590874A2 Speech password system |
| 04/06/1994 | EP0590863A2 Private branch exchange networks |
| 04/06/1994 | EP0590862A2 Information display provided to calling party |
| 04/06/1994 | EP0590334A1 Soft-key control of communication terminals |
| 04/06/1994 | EP0590182A1 Method for operating a time stage cq. a combined time-space stage of the switching network of a time division telecommunication exchange |
| 04/06/1994 | EP0411037B1 Voice-operated service |
| 04/06/1994 | CN2161029Y Switching network module for program-control user line centralizer |
| 04/06/1994 | CN1085036A Personal number communications system |
| 04/05/1994 | US5301246 Data communications equipment security device using calling party directory number |
| 04/05/1994 | US5301226 Voice processing systems connected in a cluster |
| 04/05/1994 | US5301050 Subscriber loop testing in a fiber-to-the-curb communications network |
| 03/31/1994 | WO1994007340A1 Distributive communications network |
| 03/31/1994 | WO1994007338A1 A method for starting a short message transmission |
| 03/31/1994 | WO1994007320A1 Active strapping and switching device for telephone line testing |
| 03/31/1994 | WO1994007319A1 Telephone line interface |
| 03/31/1994 | DE4232633A1 Testing information memory of time stage and combined time-space stage of coupling bay of digital time multiplex telephone exchange - cyclically printing and recording incoming multiplex lines and freely selectable control with test addresses and information |
| 03/30/1994 | EP0589620A2 Dial-up switching and transmission of broadband communication channels through a local exchange |
| 03/30/1994 | EP0589595A2 Method and apparatus for detecting a supervisory audio tone |
| 03/30/1994 | EP0589526A2 Integrated Services Digital Network (ISDN) and ISDN - terminal |
| 03/30/1994 | EP0589417A2 Data transmitting/receiving apparatus and data communication system |
| 03/30/1994 | EP0589248A2 Method and arrangement for displaying call numbers at telephone terminals of a private branch exchange |
| 03/30/1994 | EP0589231A1 Subscriber interface for connecting a private branch exchange to a public exchange |
| 03/30/1994 | EP0589117A1 Adapter for the connection to a clear-channel telecommunication network |
| 03/30/1994 | EP0368845B1 Controlling key-system groups from a distributed control switching system |
| 03/29/1994 | US5299261 Arrangement for effecting segmentation of a dialed number |
| 03/29/1994 | US5299260 Telephone call handling system |
| 03/29/1994 | US5299259 Distributing calls over serving centers of a large customer |
| 03/29/1994 | US5299258 Information input/output controller for telephone lines |
| 03/29/1994 | US5299257 Subscriber initiated non-intrusive network-based analysis of facsimile transmissions |
| 03/29/1994 | US5299256 PBX telephone with message printer |
| 03/29/1994 | US5299191 Method and a system of control of asynchronous time communication outputs |
| 03/29/1994 | US5297975 Terminal bank for the telecommunication and data technology |
| 03/29/1994 | CA2011385C Digital service unit |
| 03/29/1994 | CA1328130C Scrambling in digital communications network |
| 03/26/1994 | CA2094408A1 Adapter for the connection to a clear-channel telecommunication network |
| 03/23/1994 | EP0588745A1 Multi-media analog/digital/optical switching apparatus |
| 03/23/1994 | EP0588646A2 Automatic telephone system |
| 03/23/1994 | EP0588576A2 Message length reporting system for telephone communication system |
| 03/23/1994 | EP0588510A1 Call routing scheme with verification of called party presence |
| 03/23/1994 | EP0588101A2 Message storage and retrieval systems employing selective caller processing |
| 03/23/1994 | EP0587950A1 Automatic call back system and method of operation |
| 03/23/1994 | EP0587629A1 Voice services equipment |
| 03/23/1994 | EP0587575A1 Telephone line interface circuit with voltage switching |
| 03/22/1994 | US5297210 Microphone actuation control system |
| 03/22/1994 | US5297197 Multiple party telephone control system |
| 03/22/1994 | US5297195 Method and apparatus for automatic telephone scheduling system |
| 03/22/1994 | US5297194 Simultaneous speaker-independent voice recognition and verification over a telephone network |
| 03/22/1994 | US5297183 Speech recognition system for electronic switches in a cellular telephone or personal communication network |
| 03/22/1994 | US5297167 Method and apparatus for detecting digital carrier signals on telephone cables |
| 03/22/1994 | US5297140 Method and system of smoothing and control of asynchronous time communications |
| 03/22/1994 | US5296850 Apparatus and proceses for mapping the connectivity of communications systems with multiple communications paths |
| 03/22/1994 | CA2101501A1 Method and apparatus for detecting a supervisory audio tone |
| 03/22/1994 | CA2024244C Virtual private line service |
| 03/22/1994 | CA1328022C Recording system with response categorization |
| 03/19/1994 | CA2106057A1 Automatic telephone system with function for multiple out-dialed calls per caller |
| 03/19/1994 | CA2106055A1 Message length reporting system for telephone communication system |
| 03/18/1994 | CA2099024A1 Multi media analog/digital/optical switching apparatus |
| 03/17/1994 | WO1994006254A1 Cordless telephone system with different ringing patterns |
| 03/17/1994 | WO1994006236A2 Personal number communications system |
| 03/17/1994 | WO1994006232A1 Management in telecom and open systems |
| 03/17/1994 | CA2122334A1 Management in telecom and open systems |
| 03/16/1994 | EP0587290A2 Method and system for monitoring and/or controlling the performance of an organization |
| 03/16/1994 | EP0587242A2 Information device |
| 03/16/1994 | EP0586954A2 Techniques for producing PC displays and printed transcripts from voicemail messages |
| 03/16/1994 | EP0586953A2 Techniques for producing voice mail messages from various text inputs |
| 03/15/1994 | US5295185 Ringing signal generation circuit with protection against overvoltage |
| 03/15/1994 | US5295184 Dynamically adjustable call pacing system |
| 03/15/1994 | US5295177 Automatic terminal start/stop verification system using call processing simulator |
| 03/15/1994 | US5295134 In-service activator for a broadband exchanger |
| 03/15/1994 | CA2024245C Multilocation queuing for telephone calls |
| 03/12/1994 | CA2078081A1 Network node event notification in circuit switched environments |
| 03/10/1994 | DE4228997A1 Establishing connection in telephone exchange - applying control programme to select required subscriber within subscriber group connected to common exchange terminal |
| 03/10/1994 | DE4228407A1 Establishing telephone party line subscriber connection - adjusting reception amplification at each end of connection to provide damping compensation |
| 03/10/1994 | DE4225567A1 Automatic calling and message relaying device for telephone network - uses analogue or digital memory holding spoken message to be relayed to called subscriber |
| 03/09/1994 | EP0585480A1 Method and arrangement for establishing conference connections in a processor-controlled telephone excharge |
| 03/08/1994 | US5293556 Knowledge based field replaceable unit management |
| 03/08/1994 | US5293420 Ring trip circuit |
| 03/03/1994 | WO1994005112A1 System and method for creating, transferring, and monitoring services in a telecommunication system |
| 03/03/1994 | WO1994005111A1 An apparatus and method for creating, testing, validating, and provisioning telecommunication services |
| 03/03/1994 | WO1994005108A1 Communication channel switching arrangement |
| 03/03/1994 | DE4302908A1 Critical fault detection system for communication system - compares number of detected faults within defined interval with threshold value to indicate critical condition |
| 03/03/1994 | DE4229000A1 Evaluating reserve handling potential of programme controlled communications exchange - timing duration for processing lowest priority operating programme module |
| 03/03/1994 | DE4228952A1 Tone signal evaluation system for telephone exchange - with microcontroller supplied with frequency and level information for each tone signal voltage |
| 03/03/1994 | CA2141198A1 Communication channel switching arrangement |
| 03/02/1994 | EP0585004A2 Voice directed communications system employing shared subscriber identifiers |
| 03/02/1994 | EP0584939A2 Video telephony dialing |
| 03/02/1994 | EP0584938A2 Bidirectional video telephony |
| 03/02/1994 | EP0584198A1 Method and system of combining signals in a telephone conference circuit |
| 03/02/1994 | CN2158158Y Dial pulse discriminator in voice loop for telephone |
| 03/02/1994 | CN1083295A Intellgent call screening in a virtual communications network |
| 03/01/1994 | US5291552 Distribution of calls among automatic call distributors of a single large customer |
| 03/01/1994 | US5291551 Home agent telecommunication technique |
| 03/01/1994 | US5291550 In a telecommunications network |
| 03/01/1994 | US5291548 Distributed telephone conference control device |
| 03/01/1994 | US5291545 Apparatus and method for determining the state of a telephone line |
| 03/01/1994 | US5291493 ISDN interface |
| 03/01/1994 | US5291481 Congestion control for high speed packet networks |