Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223) |
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06/21/1995 | EP0659003A1 Telephone set structure |
06/21/1995 | EP0658298A1 Virtual pager for general purpose data terminal |
06/21/1995 | CN2201759Y Anti-theft device for telephone line |
06/21/1995 | CN1029063C Computer and telephone apparatus with user friendly computer interface and enhanced integrity feature |
06/21/1995 | CN1029062C Detector for use with automatic disconnect feature in telephone answering machine |
06/21/1995 | CN1029061C Alarm and test system for digital added main line |
06/20/1995 | USRE34976 Analog/digital voice storage cellular telephone |
06/20/1995 | US5426698 Transformed current sensing relay for use in switched network modems and circuit incorporating same |
06/20/1995 | US5426693 Apparatus and method for automatically blocking the transmission of identifying information concerning a telephone calling party |
06/20/1995 | US5426691 Method and apparatus for detecting a prescribed audio frequency actuating signal applied on to a telecommunication line |
06/20/1995 | US5426690 Cordless telephone apparatus which restores radio channels after power loss |
06/20/1995 | US5426689 Cordless headset telephone for use with a business telephone |
06/20/1995 | US5426518 Image communication method and apparatus for recording and printing voice message history information |
06/20/1995 | CA2055014C Coupling device to be connected to a dce for the connection to a public switched telephone network having a local power supply circuit for allowing the use of the local telephone,dce and workstation including the same |
06/20/1995 | CA2049735C Portable radio equipment |
06/20/1995 | CA2026093C Mobile telephone system capable of adapting a portable telephone set |
06/17/1995 | CA2111822A1 Hands free use of cordless telephone |
06/16/1995 | CA2111535A1 Telephone bases |
06/14/1995 | EP0658035A2 System and method for providing selected video images to local telephone stations |
06/14/1995 | EP0658030A1 Foldable portable radiotelephone |
06/14/1995 | EP0658029A2 Hybrid circuit for an electric operating and scanning interface, applicable to electronic recorders of electromechanical telephone stations |
06/14/1995 | EP0657078A1 Data diagnostics with leds on the face of a telephone |
06/14/1995 | EP0520067B1 Improved audio distribution system |
06/14/1995 | CN2200894Y Multifunction monitor for telepone line |
06/13/1995 | USRE34968 Handset or speaker message retrieval system |
06/13/1995 | US5425096 Communication device |
06/13/1995 | US5425095 Automatic dialing apparatus with numerical pause time setting |
06/13/1995 | US5425089 Low cost telephone caller identification device and method |
06/13/1995 | US5425085 Least cost routing device for separate connection into phone line |
06/13/1995 | US5425079 Telephone power interruption data backup apparatus |
06/13/1995 | US5425078 Voice message keepsake system |
06/13/1995 | US5425077 Mobile telephone user interface including fixed and dynamic function keys and method of using same |
06/13/1995 | CA2048457C Hands free telephone set |
06/13/1995 | CA2039854C Communicating apparatus |
06/10/1995 | CA2137173A1 Termination unit for telecommunication and data lines |
06/08/1995 | WO1995015657A1 An operations center with video storage for a television program packaging and delivery system |
06/08/1995 | WO1995015643A1 Voice enhancement system and method |
06/08/1995 | WO1995015642A1 Device for switching between a telephone handset and a substitute secondary apparatus |
06/08/1995 | WO1995015621A1 A telecommunication system, and a first station, a second station, and a transceiver for use in such a system |
06/08/1995 | WO1995015619A1 Case for cellular phone containing a spare battery |
06/07/1995 | EP0656718A2 Dual port interface for a computer-based multifunction personal communication system |
06/07/1995 | EP0656715A1 An adjustable support arrangement |
06/07/1995 | EP0656692A2 Shielding for a radio telephone |
06/07/1995 | EP0656163A1 Method of establishing a communication link in a digital cordless telephone system |
06/07/1995 | CN2200263Y Portable telephone set for overhauling |
06/07/1995 | CN2200262Y Theft-proof protector for telephone line |
06/07/1995 | CN1103525A 振铃电路 Ringing circuit |
06/06/1995 | US5423079 Mobile communication terminal device and method of preventing incorrect information rewriting |
06/06/1995 | US5423062 System for reducing congestion of radio paging channel |
06/06/1995 | US5423060 Method of remote-registering communication control information and circuitry therefor |
06/06/1995 | US5422951 Low profile telephone set |
06/06/1995 | US5422947 Telephone in-use indicator |
06/06/1995 | US5422942 Incoming call transfer terminal |
06/06/1995 | US5422939 Parallel off-hook detection for both line-available and phone pick-up detection |
06/06/1995 | US5422938 Telephone set with predetermined plural editing functions |
06/06/1995 | US5422937 Remotely controlled telephone operator simulator |
06/06/1995 | US5422934 Cordless range extension accessory apparatus for radio telephones |
06/06/1995 | US5422656 Personal communicator having improved contrast control for a liquid crystal, touch sensitive display |
06/06/1995 | CA2048033C Portable telephone set comprising input keys and a shift key on different surfaces |
06/01/1995 | WO1995015044A1 Telephone communication headset |
06/01/1995 | WO1995015035A1 Method and apparatus for testing telecommunications equipment |
06/01/1995 | WO1995014965A1 Modular portable computer |
06/01/1995 | DE4340714A1 Cordless telephone achieving high quality by spacing of mouth and ear piece allowing room for loudspeaker |
06/01/1995 | DE4340679A1 Speech module providing playback of short message in mobile station |
06/01/1995 | CA2171864A1 Method and apparatus for testing telecommunications equipment |
05/31/1995 | EP0655875A1 Adapter for enhancing ISDN-telephones |
05/31/1995 | CN2199647Y Telephone ringing apparatus |
05/31/1995 | CN2199646Y Anti-theft blocking apparatus for telephone line |
05/31/1995 | CN1103224A Communication apparatus |
05/31/1995 | CN1103219A System and method for communicating with travelers |
05/31/1995 | CN1028702C Use of a vcxo in the base unit of a two-handset cordless telephone system |
05/30/1995 | US5421030 Communications system and method for bi-directional communications between an upstream control facility and downstream user terminals |
05/30/1995 | US5420973 Abridgment of text-based display information |
05/30/1995 | US5420920 Network interface device module providing sealed customer-accessible test port |
05/30/1995 | US5420919 Telephone line current modulator |
05/30/1995 | US5420915 Apparatus for instruction in use of telephone |
05/30/1995 | US5420912 Telephone having portable voice control module for playing back speech or performing a hands-free telephone function |
05/30/1995 | US5420907 Automatic control system for a remotely controllable sound producing device |
05/30/1995 | CA2136884A1 System for securing access to equipment connectable to a telephone communication channel |
05/30/1995 | CA2058399C Isdn terminal system |
05/30/1995 | CA2034872C Portable radio telephone set |
05/30/1995 | CA1335737C Communication terminal apparatus and its control method |
05/26/1995 | WO1995014344A1 Method and circuitry for controlling voice mail, call logging and call blocking functions using a modem |
05/26/1995 | WO1995014275A1 Portable apparatus for providing multiple integrated communication media |
05/26/1995 | WO1995014268A1 Method and apparatus for displaying three-dimensional animated characters upon a computer monitor's screen |
05/24/1995 | EP0654954A1 Method and apparatus for volume and intelligibility control for a loudspeaker |
05/24/1995 | EP0654929A1 Handset for a subscriber set |
05/24/1995 | EP0654928A1 Telephone set |
05/24/1995 | EP0654927A2 Radio telephone apparatus |
05/24/1995 | EP0411083B1 Telecommunications system |
05/24/1995 | CN2198727Y Pulse to two voice frequency automatic changing telephone set |
05/24/1995 | CN1102938A Modular radio communications system |
05/23/1995 | US5418851 Shock preventing telephone handset for paystation |
05/23/1995 | US5418850 Dealing board |
05/23/1995 | US5418845 Arrangement for obtaining information from a switching system database by an adjunct processor |
05/23/1995 | US5418841 Telephone answering machine with non-volatile memory |
05/23/1995 | US5418839 Environmental adaptive mechanism for channel utilization in cordless telephones |
05/23/1995 | US5418837 Method and apparatus for upgrading cellular mobile telephones |
05/23/1995 | US5418836 Radiotelephone equipment for use in vehicle |
05/23/1995 | US5418834 Maintenance termination units |