| Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223) |
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| 03/02/1994 | CN2158156Y Charging rack with telescoping mechanism for moving telephone |
| 03/02/1994 | CN2158155Y Program control power carrier telephone set |
| 03/02/1994 | CN1083296A Low power emergency telephone mode |
| 03/02/1994 | CN1083287A Keypad scanner process and device and cordless telephone employing the mechanism |
| 03/01/1994 | US5291545 Apparatus and method for determining the state of a telephone line |
| 03/01/1994 | US5291542 Mobile telephone having a power-conserving subroutine |
| 03/01/1994 | US5291541 Coupling apparatus for telephone handsets |
| 03/01/1994 | CA2077261A1 Secure access calling card for call payment data transmission |
| 02/24/1994 | DE4227914A1 Cordless IR telephone subscriber's installation - has telephones connected via IR repeaters and channels for analog speech signals and digital data pilot channel |
| 02/23/1994 | CN2157639Y Recorder for telephone |
| 02/23/1994 | CN2157638Y Antibiotic deodorisation handset cover for telephone |
| 02/23/1994 | CN2157637Y Mental short-wave selective calling device |
| 02/23/1994 | CN2157636Y Loudspeaker controller for hand telephone |
| 02/23/1994 | CN2157635Y Bar code telephone dialing device |
| 02/22/1994 | US5289542 Caller identification system with encryption |
| 02/22/1994 | US5289537 On-hook transmission circuit in cable line |
| 02/22/1994 | US5289533 Facsimile transmitting and receiving apparatus |
| 02/22/1994 | US5289530 Method and apparatus for vocally communicating to a caller at a remote telephone station synthesized speech of stored special service information |
| 02/22/1994 | US5289529 Means for improving the dynamic range of an analog/digital converter in a digital telephone answering machine |
| 02/22/1994 | US5289528 Automatic telephone answering apparatus with call forwarding arrangement |
| 02/22/1994 | US5289471 Digital communication apparatus having an error detecting section |
| 02/17/1994 | WO1994003990A1 Isolation interface apparatus |
| 02/17/1994 | DE4237395C1 Verfahren zum Programmieren einer Basisstation mit Hilfe eines Mobilteils A method for programming a base station with the aid of a handset |
| 02/16/1994 | EP0583100A1 Number assignment module setting system for portable telephone set |
| 02/16/1994 | EP0583073A1 Cordless telephone system |
| 02/16/1994 | EP0582935A1 Mounting system for electrical connectors |
| 02/16/1994 | EP0233892B1 A telephone line switch |
| 02/16/1994 | CN2156633Y Converting telephone |
| 02/16/1994 | CN2156632Y Automatic telephone calling security limiter |
| 02/16/1994 | CN2156631Y Telephone automatic answering device |
| 02/16/1994 | CN2156629Y Pulse telephon wireless paging digital information input automatic converting device |
| 02/16/1994 | CN2156628Y Support frame for telephone |
| 02/16/1994 | CN2156627Y Moveable telephone safety radiation-proof device |
| 02/16/1994 | CN2156626Y Composite tube type telephone |
| 02/16/1994 | CN2156625Y Theft-proof device for telephone |
| 02/16/1994 | CN2156624Y Moveable telephone protective cover clamp |
| 02/16/1994 | CN1082289A Telephone dial controller with speech response |
| 02/15/1994 | US5287554 Portable radio communication equipment |
| 02/15/1994 | US5287405 Called party response detecting apparatus |
| 02/15/1994 | US5287404 Telephone subscriber line voltage change detection |
| 02/15/1994 | US5287402 Data communication apparatus |
| 02/15/1994 | US5287400 Communication control device capable of quickly searching for an idle speech channel in a standby mode in a cordless telephone system |
| 02/15/1994 | US5287399 Method and apparatus for processing downlink digital voice data |
| 02/15/1994 | US5287201 Call receiving method and apparatus |
| 02/15/1994 | US5287013 Battery compartment safety interlock |
| 02/10/1994 | DE4241838C1 Schnurloses Telefon Cordless Phone |
| 02/10/1994 | DE4241307A1 Telephone switching arrangement - has volume limiting resistor at output of electro=acoustic transducer to protect users ears. |
| 02/10/1994 | DE4241305A1 Telephone circuit arrangement - reduces side tone effect using sample and switch unit to vary impedance depending on loop current. |
| 02/09/1994 | EP0582404A2 Telephonic headset structure for reducing ambient noise |
| 02/09/1994 | EP0582340A1 System for speech recognition |
| 02/09/1994 | EP0582325A1 Telephone handset construction |
| 02/09/1994 | EP0582037A2 Method and apparatus for improving wideband detection of a tone |
| 02/09/1994 | CN2155642Y Telephone-answering recording device |
| 02/09/1994 | CN1081798A A communications device |
| 02/08/1994 | US5285495 Push-button telephone dialing device with telephone hold function circuit |
| 02/08/1994 | US5285493 Radio tele-communication device with received message displaying feature |
| 02/08/1994 | CA2022796C Mobile telephone system having message recording mode of operation during failures |
| 02/03/1994 | WO1994003007A1 Telephone handset |
| 02/02/1994 | EP0581689A1 Communication method and system between a calling equipment and a called equipment via a telephone exchange |
| 02/02/1994 | EP0581528A1 Data communications equipment security device using calling party directory number |
| 02/02/1994 | EP0581416A1 Alarm for reminding users of negligently left portable cellular telephone |
| 02/02/1994 | EP0581373A2 Terminal station for telecommunication by wire |
| 02/02/1994 | EP0581372A2 End station for wire telecommunication |
| 02/02/1994 | EP0580922A1 RC Filter for low and very low frequency applications |
| 02/02/1994 | CN2155112Y Multifunction telephone converter |
| 02/02/1994 | CN2155111Y Multifunction telephone |
| 02/02/1994 | CN2155110Y Telephone automatic calling facilities |
| 02/02/1994 | CN2155109Y Microphone connector for telephone |
| 02/02/1994 | CN2155108Y Telephone line transfer socket |
| 02/02/1994 | CN1081552A Arrangement for elongation of the subscribers' loop |
| 02/01/1994 | US5283826 System using a portable call information device |
| 02/01/1994 | US5283824 Calling line identification |
| 02/01/1994 | US5283820 System utilizing portable device |
| 02/01/1994 | US5283818 Telephone answering device linking displayed data with recorded audio message |
| 02/01/1994 | US5283731 Computer-based classified ad system and method |
| 02/01/1994 | US5283546 Vandal-resistant call box |
| 02/01/1994 | CA2094996A1 Telephone |
| 02/01/1994 | CA2075086A1 Telephone handset cushion |
| 02/01/1994 | CA2023878C Handset |
| 01/30/1994 | CA2099949A1 Data communications equipment security device using calling party directory number |
| 01/27/1994 | DE4239656C1 Modulare Teilnehmereinrichtung Modular subscriber device |
| 01/26/1994 | EP0580432A1 Mobile communication terminal device and method of preventing improper rewriting of information |
| 01/26/1994 | EP0580347A1 Keypad scanners |
| 01/26/1994 | EP0580341A2 Integrated circuit and cordless telephone using the integrated circuit |
| 01/26/1994 | EP0580340A1 Telephone apparatus and method |
| 01/26/1994 | EP0580334A2 Portable radiotelephone |
| 01/26/1994 | EP0580190A2 Interface to and operation of a voice messaging system |
| 01/26/1994 | EP0580174A1 Desktop radiotelephone holder |
| 01/26/1994 | EP0579927A2 DTMF signal detection for voice processing equipment |
| 01/26/1994 | EP0579891A1 Circuit for the implementation of an impedance associated to a telephone speech circuit |
| 01/26/1994 | CN2154569Y Numeral message recording machine of telephone |
| 01/26/1994 | CN2154568Y Automatic dialing machine for telephone |
| 01/26/1994 | CN2154567Y Wire anti-theft apparatus for municipal carrier telephone subscriber |
| 01/25/1994 | US5282246 Handsfree mobile telephone rack |
| 01/25/1994 | US5282245 Tubular bi-directional microphone with flared entries |
| 01/25/1994 | US5282239 Cordless telephone system for moving conveyances |
| 01/25/1994 | US5282157 Input impedance derived from a transfer network |
| 01/25/1994 | CA2048644C Method for active feedback suppression |
| 01/25/1994 | CA1326542C Modular dictation/transcription system |
| 01/22/1994 | CA2101046A1 Multi-purpose communication card system |