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