| Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223) |
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| 04/15/1993 | WO1993007693A1 Multiple access telephone extension systems and methods |
| 04/15/1993 | WO1993007691A1 A radio frequency local area network |
| 04/15/1993 | WO1993007680A1 Communication device having a speaker and microphone |
| 04/15/1993 | WO1993007668A1 Solid state isolation device using opto-isolators |
| 04/15/1993 | DE4133989C1 Control device using insertable card - transfers data between digital data transmitting telephone network and processor(s) and subscriber's appts. with digital memory |
| 04/15/1993 | CA2120520A1 A radio frequency local area network |
| 04/14/1993 | EP0536643A2 Holder device for a cordless telephone |
| 04/14/1993 | EP0536578A2 Radiotelephone |
| 04/13/1993 | US5203013 Radio telephone system supporting busy and out-of-range function |
| 04/13/1993 | US5203012 Method and apparatus for optimum channel assignment |
| 04/13/1993 | US5203009 Radio transceiver having fixed calling capacity |
| 04/13/1993 | US5202917 Telephone calling method and telephone apparatus |
| 04/13/1993 | US5202913 Communications unit for fitting in vehicles |
| 04/13/1993 | US5202828 User interface system having programmable user interface elements |
| 04/08/1993 | DE4211147C1 Telephone equipment for the hard of hearing - has inductive coupling coil in second ear piece to transmit signals to electrodynamic hearing aid in ear |
| 04/08/1993 | DE4132917A1 Office telephone exchange module - has two overlying circuit boards within housing coupled together via releasable connections |
| 04/07/1993 | EP0535912A2 Hinge mechanism for foldable electronic apparatus |
| 04/07/1993 | EP0535903A1 Miniature portable radio communication apparatus |
| 04/07/1993 | EP0535838A2 Digital audio interface in a GSM device |
| 04/07/1993 | EP0535784A2 Message transmission system |
| 04/07/1993 | EP0535562A2 Subscriber terminal for ISDN networks |
| 04/07/1993 | EP0535352A1 Line switch control circuit arrangement for telephone subset |
| 04/07/1993 | EP0418282A4 Portable call generator |
| 04/07/1993 | CN2129495Y Electronic sterilizer for telephone |
| 04/07/1993 | CN1070781A Hinge apparatus for foldable radio-telephones |
| 04/06/1993 | US5201069 Electroacoustic transducer mounting apparatus |
| 04/06/1993 | US5201068 Radio telecommunications apparatus |
| 04/06/1993 | US5201067 Personal communications device having remote control capability |
| 04/06/1993 | US5201066 Radio-telephone system employing a manner of changing a channel and a privacy digital code and interstoring them between a stationary apparatus and a portable apparatus by wireless and a method of changing the privacy digital code |
| 04/06/1993 | US5200997 Internal auxiliary frame for hand telephone |
| 04/06/1993 | US5200995 Universal outgoing call restriction circuit |
| 04/06/1993 | US5200994 Communication terminal apparatus and control method with party identification features |
| 04/06/1993 | US5200991 Image communication system including a mobile telephone set and a facsimile device |
| 04/06/1993 | US5200988 Method and means for telecommunications by deaf persons utilizing a small hand held communications device |
| 04/06/1993 | US5200956 Communications system for data transmission over a time division duplex frequency channel |
| 04/06/1993 | US5200836 Image communication apparatus with substituted reception with reduced memory requirement |
| 04/06/1993 | CA1315866C Exterior structure for cabinet |
| 04/06/1993 | CA1315858C Telecommunications wiring test apparatus and method |
| 04/06/1993 | CA1315699C Facsimile machine using cut sheets as received-signal recording paper and method of feeding the cut-sheets |
| 04/01/1993 | WO1993006682A1 Battery saver for wireless telephone |
| 04/01/1993 | WO1993006681A1 Telephone line test set with a speakerphone for communications |
| 04/01/1993 | WO1993006679A1 Handsfree telephone apparatus |
| 04/01/1993 | WO1993006678A1 A telephone cross-contamination barrier assembly |
| 04/01/1993 | WO1993006669A1 Digital telephone, cable tv system and local exchange bypass network |
| 04/01/1993 | DE4136790C1 Text data input method for telecommunications appts e.g. telephone - using symbol input keys and function keys to control information displayed |
| 04/01/1993 | DE4132146A1 Controlling subscriber terminals to establish connection - using central control for conversion of pulse into message for answering machine when calling subscriber hangs up |
| 04/01/1993 | CA2118911A1 Digital telephone, cable tv system and local exchange bypass network |
| 03/31/1993 | EP0534783A2 Key telephone system with virtual private lines |
| 03/31/1993 | EP0534549A2 Arrangement for generating pulse code modulation values in a telephone set |
| 03/31/1993 | EP0534478A2 Portable telephone apparatus including electronic notebook function |
| 03/31/1993 | EP0533935A1 Telephone set |
| 03/31/1993 | CN2129050Y Sealed type substation box |
| 03/31/1993 | CN1070526A Circuit arrangement for controlling volume range of voice terminal |
| 03/31/1993 | CN1020231C Active repeating telephone set |
| 03/30/1993 | US5199064 Fully-integrated telephone unit |
| 03/30/1993 | US5199063 Automatically generating telephone directory labels for facsimile devices |
| 03/30/1993 | US5198992 Method and apparatus for improving wideband detection of a tone |
| 03/30/1993 | CA1315429C Device to provide an individual telephone number for a facsimile terminal on a shared telephone line based on coded ringing |
| 03/30/1993 | CA1315428C Communication terminal apparatus and its control method |
| 03/30/1993 | CA1315381C Telecommunications installation box |
| 03/25/1993 | DE4131421A1 Subscriber appts. controller switching between types of communication - deactivates calling signal generator when loop is closed and loop current monitored for presence of DC |
| 03/25/1993 | DE4131420A1 Subscriber appts. controller switching between types of communication - prevents propagation of received signal to variety of equipment, pending recognition of type of incoming call |
| 03/25/1993 | DE4131419A1 Subscriber appts. controller switching between types of communication - delays reproduction of message, for e.g. telephone caller, while incoming signal is monitored for facsimile content |
| 03/24/1993 | EP0533510A2 Cordless key telephone system with multiple tenant facility |
| 03/24/1993 | EP0533509A2 Cordless key telephone system for repeating attempts to alert stations located in interference-affected zones |
| 03/24/1993 | EP0533435A1 Radio telephone apparatus with frequency divider used during emission and stopped during reception |
| 03/24/1993 | EP0532826A2 Emergency calling device |
| 03/24/1993 | CN2128810Y Protector for telephone subscriber |
| 03/24/1993 | CN2128809Y Lock-type terminal box |
| 03/24/1993 | CN1070300A Telephone convenient for use under dark environment |
| 03/23/1993 | USRE34200 Coin fraud preventing unit and modular configurations for pay telephone stations |
| 03/23/1993 | US5197093 Enviromental adaptive mechanism for channel utilization in cordless telephones |
| 03/23/1993 | US5197091 Portable telephone having a pipe member which supports a microphone |
| 03/23/1993 | CA1315032C Cordless telephone |
| 03/18/1993 | WO1993005606A1 Telecommunications device |
| 03/18/1993 | WO1993005603A1 Telephone network interface |
| 03/17/1993 | EP0532101A2 Radio-mobile apparatus |
| 03/17/1993 | EP0531769A1 Circuit arrangement for dynamic control of a speech communication terminal |
| 03/17/1993 | EP0531645A2 Portable transaction terminal |
| 03/17/1993 | EP0531531A1 Cordless telephone set |
| 03/17/1993 | EP0520067A4 Improved audio distribution system |
| 03/17/1993 | CN2128441Y Intelligent tester for line fault of telephone cable |
| 03/16/1993 | US5195183 Data communication system with communicating and recharging docking apparatus for hand-held data terminal |
| 03/16/1993 | US5195142 Piezoelectric transducer |
| 03/16/1993 | US5195130 Computer and telephone apparatus with user friendly computer interface and enhanced integrity features |
| 03/16/1993 | US5195129 Switching system for application services |
| 03/16/1993 | US5195127 Radio telephone system and its control method |
| 03/16/1993 | US5195125 Telephone line connection apparatus |
| 03/16/1993 | US5195124 Testing system for local subscribers |
| 03/16/1993 | US5195087 Telephone system with monitor on hold feature |
| 03/16/1993 | CA1314618C Telephone earpiece extension attachment |
| 03/11/1993 | DE4129949A1 Telephone appts. remote control |
| 03/11/1993 | DE4129377A1 Active telephone answering machine - allows message to be fed to called telephone number during absence of telephone subscriber |
| 03/10/1993 | EP0531144A2 Radio telephone apparatus having call limiting function |
| 03/10/1993 | EP0531094A2 Integrated cellular telephone and vehicular audio system |
| 03/10/1993 | EP0530746A2 Subscriber loop tester for telephone switching systems |
| 03/10/1993 | EP0530722A2 Method and circuit arrangement for suppression of the first ring of telephone sets connected to additional equipment |
| 03/10/1993 | EP0530719A1 Support for a portable telephone in a vehicle |
| 03/10/1993 | EP0530645A2 Telephone signal classification and phone message delivery method and system |
| 03/10/1993 | CN2128025Y Telephone multi-function converter |