| Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223) |
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| 01/20/1994 | WO1994001958A1 Arrangement for simplifying ordering of telecommunication services |
| 01/20/1994 | WO1994001957A1 Method for fail-safe operation in a speaker phone system |
| 01/20/1994 | WO1993023960A3 Telecommunications network interface assembly |
| 01/20/1994 | DE4223710A1 Telephone wall mounting - holds telephone securely with hook on wall mounted plate engaging with telephone |
| 01/19/1994 | EP0579287A2 Interface to and operation of a voice messaging system |
| 01/19/1994 | EP0578994A2 The option bus |
| 01/19/1994 | EP0578993A2 Method and apparatus for processing downlink digital voice data |
| 01/19/1994 | EP0268667B1 A telephone line monitoring system |
| 01/19/1994 | CN2153913Y Ringing sound volume automatic increasing type telephone set |
| 01/19/1994 | CN2153912Y Headgear earphone for telephone |
| 01/19/1994 | CN1081046A One-pass dialing device for telephone |
| 01/19/1994 | CN1081045A Telecommunications network interface assembly |
| 01/18/1994 | US5280541 Cordless telephone communication system link re-establishment protocol |
| 01/18/1994 | US5280524 Bone conductive ear microphone and method |
| 01/18/1994 | US5280523 Telephone line message waiting and ring indicator |
| 01/18/1994 | US5280522 Circuit for transmitting voice signals and dial pulses |
| 01/18/1994 | US5280517 Storage apparatus which controls the usage of a storage medium |
| 01/18/1994 | US5280516 Paging system for automatically dialing and method therefor |
| 01/18/1994 | CA2100705A1 Method and apparatus for processing downlink digital voice data |
| 01/18/1994 | CA1326299C Speaker verification system using integrated circuit cards |
| 01/18/1994 | CA1326290C Cordless telephone antenna arrangement |
| 01/16/1994 | CA2100621A1 Telecommunication system |
| 01/13/1994 | DE4222539A1 Limitation of charges incurred by unauthorised telephone connection - opening isolating switch operated by countdown to expiry of time limit for local, national or international call. |
| 01/12/1994 | EP0578604A1 Audio frequency signal compressing system |
| 01/12/1994 | CN2153186Y Crosstalk-preventing protector for non-cord telephone |
| 01/12/1994 | CN2153185Y Multiparty telephone |
| 01/12/1994 | CN2153184Y Rotary disc telephone |
| 01/12/1994 | CN2153183Y Protector for connection of city telephone line and exchanger |
| 01/11/1994 | US5278993 Integral spring loaded hinge and switch for portable radio device |
| 01/11/1994 | US5278992 Method and apparatus for controlling transmission power of a remote unit communicating with a base unit over a common frequency channel |
| 01/11/1994 | US5278896 Automatic answering telephone apparatus |
| 01/11/1994 | US5278895 Voice messaging method and apparatus for pay phone telephone systems |
| 01/11/1994 | US5278894 Use of incoming caller line identification |
| 01/11/1994 | US5278893 Telephone having two handsets |
| 01/11/1994 | US5278730 Modular notebook computer having a planar array of module bays |
| 01/11/1994 | US5278546 Selective call receiver having received message indicators |
| 01/11/1994 | US5276986 Combination of a communication device and a display device |
| 01/11/1994 | CA2073571A1 Door answering system |
| 01/06/1994 | WO1994000970A1 Modular notebook computer |
| 01/06/1994 | WO1994000967A1 Rigid fastener for housing assembly |
| 01/06/1994 | WO1994000922A1 Method and apparatus for objective speech quality measurements of telecommunication equipment |
| 01/05/1994 | EP0577474A1 Ringing circuit for telephone set |
| 01/05/1994 | EP0577296A1 Cordless headset telephone for use with a business telephone |
| 01/05/1994 | EP0576554A1 Communication device with isdn interface |
| 01/05/1994 | DE4223572C1 Sound generation in appts. telephone receivers - has loudspeaker chamber coupled to resonator formed by length of tubing to correct low frequency characteristic |
| 01/05/1994 | DE4221801A1 Three-row number-pad keyboard operable with one hand and without sight - provides five keys suitably disposed in two lower rows for rest positions of fingers and thumb respectively |
| 01/05/1994 | CN2152357Y Party-line different number telephone separator |
| 01/05/1994 | CN2152356Y Circulate recording and playing device for telephone |
| 01/05/1994 | CN1080449A Telephone system without recording numbers |
| 01/05/1994 | CN1080448A Multi-functional dispatching telephone set |
| 01/05/1994 | CN1080444A Paging system that allows caller/subscriber interconnection |
| 01/05/1994 | CN1080438A Protector module for telephone line junction box and method of protecting a circuit |
| 01/05/1994 | CN1080414A Apparatus for accepting and retaining an information card |
| 01/04/1994 | US5276918 Mobile radio telephone with booster unit |
| 01/04/1994 | US5276916 Communication device having a speaker and microphone |
| 01/04/1994 | US5276908 In a radio communication system |
| 01/04/1994 | US5276733 Call generation apparatus |
| 01/04/1994 | US5276731 Method and apparatus for handling incoming telephone calls |
| 01/04/1994 | US5276729 Radiotelephone for automatically dialing remotely programmed number upon call termination and without user operation |
| 01/04/1994 | US5276686 Mobile radio communication system having mobile base and portable devices as a mobile station |
| 01/04/1994 | US5276679 Method for maintaining channels and a subscriber station for use in an ISDN system |
| 01/04/1994 | US5276588 Telephone handset assembly having rigid fastener for connecting handset assembly portion-portions theretogether |
| 01/04/1994 | US5274882 Hinge mechanism |
| 01/04/1994 | CA2021847C Radiotelephone system |
| 12/29/1993 | EP0576364A1 Universal telephone call transfer device |
| 12/29/1993 | EP0576209A1 Remote charging cradle for cordless telephone handset |
| 12/29/1993 | EP0576141A2 Arrangement for obtaining information from a switching system database by an adjunct processor |
| 12/29/1993 | EP0575761A1 User installed telephone option module to provide additional functions to a basic telephone |
| 12/29/1993 | EP0575760A2 Apparatus for electrically and mechanically connecting an auxiliary device to a main unit |
| 12/29/1993 | EP0364444B1 Internal communication system |
| 12/29/1993 | EP0362376B1 Mobile telephone |
| 12/29/1993 | CN2151594Y Controller for 1+1 telephone |
| 12/29/1993 | CN2151593Y Message controller for assembled recorder telephone |
| 12/29/1993 | CN2151591Y Disinfective telephone box |
| 12/29/1993 | CN2151590Y Convenient telephone |
| 12/29/1993 | CN2151589Y Four function telephone |
| 12/29/1993 | CN1080099A A method for eliminating acoustic echo in a communication device |
| 12/28/1993 | US5274703 Automatic loss control circuit |
| 12/28/1993 | US5274701 Telephone alerter |
| 12/28/1993 | US5274699 Method for providing caller identification to a call recipient |
| 12/28/1993 | US5274698 Method of restricting telephone calls in a private branch exchange system |
| 12/28/1993 | US5274695 System for verifying the identity of a caller in a telecommunications network |
| 12/28/1993 | US5274693 Abbreviated and enhanced dialing apparatus and methods particularly adapted for cellular or other types of telephone systems |
| 12/28/1993 | US5274320 Method for charging radio telephone system |
| 12/28/1993 | CA1325660C Telephone answering machine for use with mobile telephone |
| 12/23/1993 | WO1993026132A1 User selectable response to alert transmitted from cellular telephone base station |
| 12/23/1993 | WO1993026112A1 Apparatus for accepting and retaining an information card |
| 12/23/1993 | WO1993025955A1 Portable data processor which selectively activates and deactivates internal modular units and application processor to conserve power |
| 12/23/1993 | DE4220289A1 Infrared telephone system with handset and base unit |
| 12/23/1993 | DE4220016A1 Vehicle telephone appts. with key-pad for driver of vehicle - is located in centre of steering wheel with contacts allowing transmission of selective signals during manoeuvres. |
| 12/23/1993 | CA2137831A1 Portable data processor which selectively activates and deactivates internal modular units and application processor to conserve power |
| 12/22/1993 | EP0574938A2 System for detecting non-coincidence of codes |
| 12/22/1993 | CN2150685Y Computer cipher controller for long-distance telephone |
| 12/22/1993 | CN2150684Y Disturbed-less controller for telephone |
| 12/22/1993 | CN2150682Y Holder for movable telephone |
| 12/22/1993 | CN2150681Y Office-line switch capable of being used by single machine |
| 12/21/1993 | US5272277 Telecommunications wiring system |
| 12/21/1993 | CA2018263C Mobile telephone device for carrying out an aging operation without interference with a mobile telephone system |
| 12/15/1993 | EP0574147A1 Multiple language capability in an interactive system |
| 12/15/1993 | EP0574006A1 IC card storing language identification for guidance message display in a terminal apparatus |