Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223) |
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11/03/1994 | DE3690413C2 Intermediate repeater for use in two-wire links of a dial-up telephone network and method for controlling the amplification of said repeater |
11/02/1994 | EP0622939A1 Method for routing of calls and communication terminals for such |
11/02/1994 | EP0622935A1 Portable telephone apparatus having option circuits in a battery pack |
11/02/1994 | EP0622934A1 A device for the acoustic identification of a caller in telephone sets |
11/02/1994 | EP0622933A1 Arrangement for expanding the abbreviated dialling memory of a radio telephone |
11/02/1994 | EP0550642B1 Dtmf signal detection apparatus for a voice store and forward equipment |
11/02/1994 | CN2181786Y Automatic answer time-delay ringing device |
11/02/1994 | CN2181785Y Automatic dialing device for telephone |
11/02/1994 | CN2181784Y Telephone for calling subscriber directly |
11/01/1994 | US5361295 Call screening telephone communication method |
11/01/1994 | US5361293 Line/drop testing from a craft terminal using test unit |
11/01/1994 | US5360683 Battery pack |
11/01/1994 | CA2048650C Speakerphone for cellular telephones with howl prevention, detection, elimination and determination |
11/01/1994 | CA2040588C Latch assembly |
10/27/1994 | WO1994024775A1 Method and apparatus for transmission of data using radio frequency signals |
10/27/1994 | WO1994024774A1 A live voice device for cellular phones particularly operable in combination with radio receiver apparatus in motor vehicles |
10/27/1994 | WO1994024754A1 Integrated battery contact and retentive protrusion |
10/27/1994 | DE4313297A1 Multiple telephone hygiene article |
10/27/1994 | DE4312930A1 Method for telecommunications terminals |
10/27/1994 | CA2160918A1 Method and apparatus for transmission of data using radio frequency signals |
10/27/1994 | CA2160150A1 A live voice device for cellular phones particularly operable in combination with radio receiver apparatus in motor vehicles |
10/26/1994 | EP0544667A4 Dialing editing method and apparatus |
10/26/1994 | CN2181145Y Telephone automatically answering recorder and player |
10/26/1994 | CN2181144Y Computer learning unit with leaving message |
10/26/1994 | CN2181143Y Alarm device for telephone when placed on non-right position |
10/26/1994 | CN2181142Y Multi-function digital telephone phonetics processor |
10/26/1994 | CN2181141Y Multi-function telephone wire connector |
10/26/1994 | CN1094207A Disinfecting cover for telephone |
10/25/1994 | US5359658 Key marking overlay for alphanumeric keypads |
10/25/1994 | US5359657 Telephone line overvoltage protection apparatus |
10/25/1994 | US5359654 Telecommunications network interface assembly |
10/25/1994 | US5359653 Circuit arrangement for controlling the volume range of a voice terminal |
10/25/1994 | US5359651 Telephone dialler with fast access telephone directory and "call back" feaure |
10/25/1994 | US5359647 Headset in-use indicator |
10/25/1994 | US5359598 Voice server for digital communication network |
10/25/1994 | CA2051232C Text mail system using isdn and isdn communication terminal device for use therein |
10/25/1994 | CA2019319C Voice recognition dialing unit |
10/23/1994 | CA2094667A1 Two-way communications earset with filter |
10/20/1994 | DE4311910A1 Device for testing telecommunications equipment |
10/19/1994 | EP0620516A1 Computer system using the notebook metaphol |
10/19/1994 | EP0619913A1 Voice controlled messaging system and processing method |
10/19/1994 | EP0540570B1 Process for carrying out a variable dialogue with technical equipment |
10/19/1994 | CN2180023Y Telephone auxiliary means with code-controlled messages-recording arrangement |
10/18/1994 | US5357570 Interface connector mounting structure for wireless terminal device |
10/18/1994 | US5357569 Trans-hybrid loss compensator for on hook transmission |
10/18/1994 | US5357568 Telephone line overvoltage protection method and apparatus |
10/18/1994 | US5357567 Method and apparatus for volume switched gain control |
10/18/1994 | US5357566 Object-oriented programmable dedicated dialer device and method of programming and calibrating the device |
10/18/1994 | US5357558 Radio communication apparatus for ISDN |
10/18/1994 | US5357557 Inter-mobile-terminal testing method in cellular automobile telephone system |
10/18/1994 | US5357245 Communicant verifier |
10/18/1994 | US5357065 Circuit unit for electronic instrument having key-pad arrangement |
10/13/1994 | WO1994023526A1 Automatic routing of incoming telephone calls to a plurality of receiving devices based on caller identification |
10/13/1994 | WO1994023522A1 Communication device connected to an electronic enterphone comprising an answering machine and telecommunications network |
10/13/1994 | WO1994023521A1 Unidirectional ear microphone and gasket |
10/13/1994 | WO1994023520A1 Unidirectional ear microphone with multiple openings |
10/12/1994 | EP0619669A2 Interface device for data transmission on a radio link |
10/12/1994 | EP0619668A2 Calling number identification using speech recognition |
10/12/1994 | EP0619651A1 Foldback current limiting of a telephone line switch |
10/12/1994 | EP0423202B1 Headphone with microphone |
10/12/1994 | CN2179670Y Device for preventing stealthily phoning |
10/12/1994 | CN1093475A Computer and telephone apparatus with user-friendly computer interface and enhanced integrity features |
10/11/1994 | US5355406 Integrated application controlled call processing and messaging system |
10/11/1994 | US5354216 Mounting system for electrical connectors |
10/11/1994 | CA2013384C Facsimile apparatus |
10/06/1994 | DE4410995A1 Portable radiotelephone with sound amplification |
10/06/1994 | DE4401957A1 Device for the electrical and mechanical connection of electrical system components |
10/06/1994 | DE4401591A1 Device for the electrical and mechanical connection of electrical system components |
10/06/1994 | DE4324573C1 Method for enabling audible monitoring in cordless telephones |
10/06/1994 | DE4310873A1 Cordless, detachable speech unit |
10/05/1994 | EP0618711A1 Electronic visiting-card with an automatic calling function |
10/05/1994 | EP0618710A2 Method of voice activated telephone dialing |
10/05/1994 | EP0617869A1 Multi-purpose modular cordless telephone. |
10/05/1994 | CN2178967Y Gradually ringing device for telephone bell |
10/05/1994 | CN1093211A An operations center for a television program packaging and delivery system |
10/04/1994 | US5353349 Telephone security shield |
10/04/1994 | US5353347 Telephone headset amplifier with battery saver, receive line noise reduction, and click-free mute switching |
10/04/1994 | US5353341 Cordless telephone arranged for operation in a frequency hopping system |
10/04/1994 | US5353330 Power conserving mobile telephone usable as a portable phone and as an installed phone |
10/04/1994 | US5353329 Facsimile apparatus and alarm system with cordless telephone set |
10/04/1994 | CA2028775C Cordless telephone apparatus |
10/04/1994 | CA2028231C Communication system comprising a called receiver and a communication apparatus |
10/04/1994 | CA2021793C Hands-free telephone |
10/04/1994 | CA2009234C Base station emulator |
10/01/1994 | CA2093059A1 Timed telephone switch device |
09/29/1994 | WO1994022260A1 Circuit for parsing together sets of sequences of digits to form telephonic identification codes and method therefor |
09/29/1994 | WO1994022259A1 Method and system for managing telecommunications such as telephone calls |
09/29/1994 | WO1994022258A1 Environmental adaptive mechanism for channel utilization in cordless telephones |
09/29/1994 | WO1994022257A1 Secure access telephone extension system and method |
09/29/1994 | WO1994022255A1 Self-diagnostic system for cellular-transceiver systems |
09/29/1994 | WO1994022254A1 Connecting device |
09/29/1994 | WO1994022234A1 Mobile communications equipment |
09/29/1994 | WO1994022225A1 Inductively coupled keyboard |
09/29/1994 | DE4309907A1 Keyboard |
09/29/1994 | DE4309120A1 Device for distributing incoming calls from an exchange line of a telecommunications network to a line of a PBX system and allocation of the exchange line for outgoing calls |
09/29/1994 | CA2158481A1 Mobile communications equipment |
09/29/1994 | CA2134976A1 Circuit for passing together sets of sequences of digits to form telephonic identification codes and method therefor |
09/28/1994 | EP0617536A1 Portable and compact radiotelephone terminal |
09/28/1994 | EP0617535A2 Mounting assembly for a radio telephone |
09/28/1994 | EP0617534A1 DTMF or decadic signalling mode for a telephone set |