Patents
Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223)
09/1994
09/28/1994EP0617533A2 Apparatus and method for detecting telephone line status
09/28/1994EP0617495A1 Flush-mounted apparatus for communications technology
09/28/1994EP0616749A1 Portable messaging and scheduling device with homebase station
09/28/1994CN2178406Y Automatic calling machine for telephone
09/27/1994US5351289 Caller ID telephone security device
09/27/1994US5351288 Voice bridge for a relay center
09/27/1994US5351283 Vehicle-mounted charging apparatus for portable telephone sets
09/27/1994US5351190 Communication apparatus and method establishing a language dependent sort order search
09/27/1994CA2004675C Radio telephone in which an off operation of an operator-actuated power switch is inhibited during a talk mode
09/22/1994DE4408379A1 Device for remote call control
09/21/1994EP0616459A1 Circuit for transmission of communication-signals
09/21/1994EP0616458A1 Portable telephone set combined with a card
09/21/1994EP0616457A1 Method and device for extending of the used area of handsets in cordless-telephony
09/21/1994EP0615674A1 Network echo canceller
09/21/1994EP0615662A1 Gel filled electrical connector
09/21/1994EP0548069B1 Speaker drive arrangement for loudspeaker telephone
09/21/1994EP0424495B1 Voice messaging for pay phone telephone systems
09/21/1994CN1092570A Portable telephone set
09/20/1994US5349701 Method and apparatus for broken link detect using audio energy level
09/20/1994US5349698 Radio communication system for a selected one of a plurality of terminal units of different kinds
09/20/1994US5349640 Option bus adapter
09/20/1994US5349639 Automatic electronic audio signal attenuating device and method therefor
09/20/1994US5349638 Universal calling/originating number identification
09/20/1994US5349629 Portable telephone with speed dialing
09/20/1994US5349497 Detachable handle structures for terminals
09/20/1994US5349254 Call progress detection circuit
09/15/1994WO1994021091A1 Circuit arrangement for integrating edp systems in the use of telephone installations
09/15/1994WO1994021058A1 Modular radio communications system
09/15/1994WO1994016514A3 Telephone line jack connector
09/15/1994DE4307173A1 Transmission system for transmitting signals between an exchange and at least one terminal
09/14/1994EP0615372A1 Improved data terminal for telephone circuits
09/14/1994EP0615371A2 Audio output equipment for a portable telephone
09/14/1994EP0615210A2 IC-card
09/14/1994EP0614588A1 Radio frequency interference filter
09/14/1994CN2177309Y Anti-theft alarm for telephone
09/14/1994CN2177308Y 永久性夜光电话机壳 Permanent luminous phone cases
09/13/1994US5347573 Method for influencing a signalling procedure implemented in a communication terminal equipment
09/13/1994US5347572 Telephone line monitoring apparatus and method
09/13/1994US5347565 Order wire device having function for reducing noise in communication system having a plurality of order wire devices
09/13/1994US5347562 Synchronizing groups of base stations in time division duplex communication systems
09/13/1994US5347208 Charging equipment for charging a portable apparatus and separable cell pack
09/13/1994US5346111 Portable, personal computer, personal communicator holder
09/13/1994CA2030439C Enhanced privacy feature for telephone systems
09/08/1994DE4406354A1 Circuit arrangement for the integration of EDP systems with the use of telephone systems
09/08/1994DE4330031A1 Circuit arrangement for integration of EDP systems with the use of telephone systems
09/08/1994DE4313026C1 Housing for a communications apparatus
09/08/1994DE4307613A1 Arrangement for keyboards of communication terminals
09/08/1994DE4307164A1 Cordless, mobile telephone
09/08/1994DE4306788A1 Cordless telephone handset
09/07/1994EP0614302A1 Telecommunication device comprising a terminal with interfaces for a chip card and a memory card
09/07/1994EP0614162A2 Voice storage communication system
09/07/1994EP0614160A1 Portable voice module
09/07/1994CN2176621Y Automatic disinfecting handset of telephone
09/07/1994CN1091873A A miniature wireless communication device
09/06/1994US5345496 Remote line test facility
09/06/1994US5345495 Data diagnostics with leds on the face of a telephone
09/06/1994US5345258 A videophone having an automatic answering capability
09/06/1994US5345226 Environmental control system for the handicapped
09/02/1994CA2116279A1 Telephonic support receptacle and method therefor
09/01/1994WO1994019896A1 Telelphone dialling code processor
09/01/1994WO1994019895A1 Voice recognition dialing system
09/01/1994WO1994019894A1 Voice transmission systems with voice cancellation
09/01/1994DE4306200A1 Voice-controlled telephone device
09/01/1994DE4306199A1 Portable speech module
08/1994
08/31/1994EP0613323A1 Piezoceramic capsule for telephone instruments
08/31/1994EP0613314A2 Cellular telephone
08/31/1994EP0613286A1 Communication apparatus utilizing a public line
08/31/1994EP0613281A1 Private branch exchange
08/31/1994EP0613277A1 Programmable signalling buttons
08/31/1994EP0613275A1 Driver interface for a telephone line switch enabling a speech circuit under any polarity conditions
08/31/1994EP0613092A1 Portable electronic device for orientation and communication
08/31/1994CN2175992Y Voice-controlling telephone number automatic dialing device
08/31/1994CN2175991Y Monitering alarm for telephone circuit fault and illegal bridging telephone
08/31/1994CN2175990Y Short-wave telephone terminal machine without noice and crossfire
08/31/1994CN2175989Y Single-face pressure-cliping branch box mould block for indoor use
08/31/1994CN1091578A Telephone with storage of calling detail material and/or special service codes
08/31/1994CN1091556A Radio Communication devices
08/31/1994CN1025807C Three dimensional transmitted method
08/30/1994US5343523 Telephone headset structure for reducing ambient noise
08/30/1994US5343519 Autodialer with pin feature
08/30/1994US5343516 Computer telecommunications signalling interface
08/30/1994US5343514 Telephone line powered system
08/30/1994US5343510 Wireless telephone
08/30/1994US5343136 Charger for charging a rechargeable battery
08/30/1994CA2024213C Telephone terminal device
08/27/1994CA2116426A1 Telecommunications private branch exchange
08/24/1994EP0612177A1 Circuit arrangement for the activation of apparatuses via a transmission line
08/24/1994EP0612176A1 Antiseptic telephone set
08/24/1994EP0572544A4 Integrated application controlled call processing and messaging system
08/24/1994CN2175498Y Micro motion switch electricity conductive terminal
08/23/1994US5341420 Noise-cancelling handset
08/23/1994US5341418 ISDN terminal adapter for access from analog signal equipment of four-wire full duplex type to ISDN
08/23/1994US5341415 Method and apparatus for sharing of common in-house wiring to permit multiple telephone carriers to serve the same customer
08/23/1994US5341414 Calling number verification service
08/23/1994US5341413 Communication equipment with a destination area on-line display function
08/23/1994US5341411 Caller ID blocking method and processing system (block caller ID information)
08/23/1994US5341370 Data transfer between high bit rate buses via unshielded low bit rate bus
08/23/1994US5341293 User interface system having programmable user interface elements
08/23/1994US5341167 Visual and sound communication system with remote control means
08/23/1994CA2007537C Method and apparatus for controlling a telephone answering device