| Patents for H04M 19 - Current supply arrangements for telephone systems (7,475) |
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| 03/23/2004 | US6711258 Apparatus and method for controlling a volume in a digital telephone |
| 03/23/2004 | US6711239 System and method for identifying a callee of an incoming telephone call |
| 03/18/2004 | WO2003030562A3 Input power connector for distribution panel |
| 03/18/2004 | DE10240815A1 Telephone subscriber line calling signal current setting procedure compares measured current into subscriber load with preset value and adjusts generator supply voltage |
| 03/17/2004 | EP0864221B1 Method and apparatus for generating a ringing signal |
| 03/17/2004 | CN1142633C Wire connected digital information transmission device |
| 03/16/2004 | US6707908 Telephone terminal device |
| 03/11/2004 | WO2004021714A2 Selectable functionality communication system and methodologies |
| 03/11/2004 | CA2497538A1 Selectable functionality communication system and methodologies |
| 03/10/2004 | CN1481186A Information processing terminal and method for operating content notice |
| 03/09/2004 | US6704582 Personalized incoming call signal for communication devices |
| 03/04/2004 | US20040043790 Selectable functionality communication systems and methodologies |
| 03/04/2004 | US20040042598 Method for indicating a call reaching a communication terminal |
| 03/04/2004 | US20040041697 Function for controlling line powered network element |
| 03/03/2004 | EP1206872A4 Reduced power line driver |
| 03/03/2004 | CN1140987C Method for compensating doped interference current variables of subscriber group |
| 03/03/2004 | CN1140986C Telecommunication circuit and telecommunication device |
| 03/02/2004 | US6700975 Subscriber line interface circuit |
| 03/02/2004 | US6700974 Switching power supply for generating a ringing voltage |
| 02/25/2004 | EP1391874A1 Musical sound reproducer and mobile terminal |
| 02/25/2004 | EP1391872A1 Telephone terminal apparatus |
| 02/25/2004 | EP1391041A2 Method for encoding and decoding pieces of music |
| 02/25/2004 | CN2604808Y Overcurrent and short-circuit protector for ringing current generator |
| 02/25/2004 | CN1478354A Communication terminal with user-configurable memory |
| 02/25/2004 | CN1140153C Telephone terminal device |
| 02/25/2004 | CN1140095C System and method for qutomatic PBX detection |
| 02/24/2004 | US6697647 Cellular mobile telephone apparatus and an alarm device therefor |
| 02/24/2004 | US6697646 Transceiver that prohibit the vibration motor |
| 02/24/2004 | US6697470 Incoming call indicator |
| 02/19/2004 | WO2003096079A3 Device housing having one or more optical fibers |
| 02/19/2004 | US20040033783 Radio communication device |
| 02/19/2004 | US20040032947 Element management system for managing line-powered network elements |
| 02/19/2004 | US20040032946 Flexible ring-tone service |
| 02/18/2004 | EP0978194B1 Mobile radiotelephone method and system and terminal used in such a system |
| 02/18/2004 | CN1476226A DSL communication device possessing lifeline function |
| 02/17/2004 | US6694143 System for using a local wireless network to control a device within range of the network |
| 02/17/2004 | US6694014 Constant impedance digital line interface circuit |
| 02/17/2004 | CA2320554C A method for the synchronization of analog call display data in distributed systems |
| 02/12/2004 | WO2003094485A3 Managing power in a line powered network element |
| 02/12/2004 | US20040027992 DSL communication apparatus with lifeline functionality |
| 02/11/2004 | CN1138425C Tone generator for electronic exchanger |
| 02/05/2004 | US20040022401 Information processing terminal, operation content notifying program and method for operation content notifying |
| 02/04/2004 | EP1387559A1 Information processing terminal and controlling method thereof |
| 02/04/2004 | EP1387558A1 DSL communication apparatus with lifeline functionality |
| 02/04/2004 | EP0929967B1 Remote supply circuitry |
| 02/04/2004 | CN1137594C Incoming call noting pattern set-up circuit and method for mobile phone |
| 02/03/2004 | US6687515 Wireless video telephone with ambient light sensor |
| 02/03/2004 | US6687371 Maintaining an off-hook condition during a call bridge |
| 01/29/2004 | US20040017911 Line powered network element |
| 01/28/2004 | EP1385325A1 Cradle, security system, telephone, and monitoring method |
| 01/28/2004 | CN1471290A Bell signal playing apparatus and method based on relay bel linformation |
| 01/22/2004 | WO2003077505A3 Mobile communication terminal with programmable lighting sequences |
| 01/22/2004 | US20040013263 Power efficient ADSL central office downstream Class G power switch |
| 01/21/2004 | CN1469677A Portable terminal and notifying method thereof |
| 01/21/2004 | CN1135826C Method and apparatus for shortening recovery time of a line driver |
| 01/21/2004 | CN1135508C Apparatus for providing thermal waning signal in skin contact type terminal and control method thereof |
| 01/20/2004 | US6681105 Mobile radiotelephone method and system and terminal used in such a system |
| 01/20/2004 | US6681013 Power feeding system for telephone terminal in LAN |
| 01/20/2004 | US6681006 Service activation upon automatic callback and automatic recall expiration |
| 01/20/2004 | CA2325767C Power supply for ethernet lan connected telephone |
| 01/15/2004 | US20040007348 Systems and methods for weatherproof cabinets with variably cooled compartments |
| 01/15/2004 | DE10226105A1 Verfahren zum Identifizieren eines Telekommunikationsteilnehmers A method for identifying a telecommunication subscriber |
| 01/14/2004 | CN1467949A Power supply apparatus monitoring method and equipment based on common telephone network |
| 01/14/2004 | CN1134996C Telephone apparatus |
| 01/14/2004 | CN1134995C Portable alerting unit for alerting a user of call arrival to portable radio apparatus |
| 01/13/2004 | US6678538 Power supply method and power supply device for portable telephone |
| 01/13/2004 | US6678377 Monolithically integrated telephone circuit for driving wide-band telephone lines for data transmission |
| 01/08/2004 | WO2004004302A1 Device and method for adaptive triggering of bell signals |
| 01/08/2004 | WO2004004295A1 A cell phone with scheduled-based suppression of a notification of an incoming call |
| 01/08/2004 | DE19846544B4 Telefon Phone |
| 01/08/2004 | DE10226173A1 Telefonadapter Phone Adapter |
| 01/07/2004 | EP1379065A1 Polite call waiting notification |
| 01/07/2004 | EP1379064A2 Selective incoming message notification |
| 01/07/2004 | EP0839426B1 Telephone exchange |
| 01/07/2004 | EP0792549B1 Method and apparatus for determining the deviation of longitudinal signal components from a predetermined value |
| 01/07/2004 | CN1466397A Mobile telephone set and control method |
| 01/06/2004 | US6675026 Method for editing terminating ring tone in a mobile wireless terminal |
| 01/06/2004 | US6675002 System and method for automatically muting cellular telephone devices in noise sensitive areas |
| 01/06/2004 | US6674857 Startup procedure for international line powered DAA |
| 01/02/2004 | EP1373911A1 Pots extender for voice fallback in a subscriber line field of the invention |
| 01/01/2004 | US20040001586 Line driver apparatus |
| 01/01/2004 | US20040001584 Polite call waiting notification |
| 01/01/2004 | CA2646496A1 Intelligent incoming message notification |
| 01/01/2004 | CA2646432A1 Intelligent incoming message notification |
| 12/31/2003 | WO2003088628A3 Method and apparatus for transmitting signaling tones over a packet switched network |
| 12/30/2003 | US6671373 Method and apparatus for DC feed control |
| 12/30/2003 | US6671370 Method and apparatus enabling a calling telephone handset to choose a ringing indication(s) to be played and/or shown at a receiving telephone handset |
| 12/30/2003 | CA2365050C A communication network terminal supporting a plurality of applications |
| 12/25/2003 | US20030236101 Mobile terminal device comprising vibrating component having light effects |
| 12/24/2003 | CN1463507A Echo processing appts. |
| 12/23/2003 | US6668060 Tracking switchmode power converter for telephony interface circuit |
| 12/23/2003 | CA2365116C A communication network terminal supporting a plurality of applications |
| 12/18/2003 | WO2003105449A1 Communication device and communication device ringing method |
| 12/16/2003 | US6665548 Wireless communication device having display panel |
| 12/16/2003 | US6665534 Priority incoming call alerting system for a wireless communication system |
| 12/16/2003 | US6665404 Method and device for power supply in telecommunication systems |
| 12/16/2003 | US6665403 Digital gyrator |
| 12/16/2003 | US6665398 Programmable subscriber loop interface circuit and method |
| 12/11/2003 | US20030228889 Self-rechargeable portable telephone |
| 12/11/2003 | US20030228003 Silent phone |