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Class Information
Number: 455/462
Name: Telecommunications > Radiotelephone system > Including private cordless extension system
Description: Subject matter wherein a base transceiver having direct connection to a landline telephone switching system provides restricted telephony access to a pre-selected cordless extension unit.










Sub-classes under this class:

Class Number Class Name Patents
455/464 Channel selection or allocation 683
455/463 Multi-users 269


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
6327476 System and method for wireless voice and computer communications using a wireless link to a public telephone network Dec. 4, 2001
6314298 Wireless communications system having a communications apparatus accommodating communication lines and a wireless communications apparatus wirelessly connected to said apparatus, and method of Nov. 6, 2001
6311079 Wireless telephony ring detection method for extended battery life Oct. 30, 2001
6308074 Hands-free personal communication device and pocket sized phone Oct. 23, 2001
6307348 Mounting stands for use with AC adapters Oct. 23, 2001
6301483 Device network and methods concerning cordless telecommunication Oct. 9, 2001
6301477 Method for creating and modifying similar and dissimilar databases for use in GSM wireless network configurations for telecommunication systems Oct. 9, 2001
6278722 Architecture for a digital portable telephone Aug. 21, 2001
6272357 Method for making call reservation using portable unit in facsimile apparatus Aug. 7, 2001
6269257 Adaptive paging signal in cordless telephone Jul. 31, 2001
6263211 System and method of automatically conveying a Wireless Office System (WOS) frequency set to mobile stations Jul. 17, 2001
6256519 Cordless telephone with corded operability Jul. 3, 2001
6256512 Mobile access to a PBX via a TLDN Jul. 3, 2001
6253088 Personal base station for integrated cellular and cordless communication system Jun. 26, 2001
6233448 System, method and apparatus for automatic feature activation/deactivation based upon positioning May. 15, 2001
6233460 Portable telecommunications apparatus May. 15, 2001
6230007 Method and apparatus for detecting message waiting signal May. 8, 2001
6226515 Cellular cordless telecommunications system May. 1, 2001
6226527 Intelligent network searching for a multi mode phone May. 1, 2001
6219563 Method for signal transmission in a communication system between a mobile radio transmission/reception device and a stationary radio transmission/reception device Apr. 17, 2001
6216017 Separable cellular telephone and method for operating the same Apr. 10, 2001
6216005 Cellular-fixed call completion and call transfer service from a cellular network provider Apr. 10, 2001
6212377 System and method of providing group wireless extension phone service in a radio telecommunications network Apr. 3, 2001
6212394 Radio communication system Apr. 3, 2001
6208869 Mobile radio communicating system including both a public system and at least one private system Mar. 27, 2001
6208867 Portable terminal system, option apparatus for portable terminal unit, and method for connecting portable terminal unit and option apparatus for portable terminal unit Mar. 27, 2001
6205338 Intercommunication method between portable units in TDMA cordless telephone system Mar. 20, 2001
6195642 Digital broadcasting receiving apparatus Feb. 27, 2001
6188895 Method for coupling of telecommunication terminals to a radio network termination Feb. 13, 2001
6181935 Mobility extended telephone application programming interface and method of use Jan. 30, 2001
6178321 Telephone system comprising a base station and at least one handset, method implemented in such a system, subscriber station and base station suitable for such a system Jan. 23, 2001
6175731 Radio communication apparatus and control method therefor Jan. 16, 2001
6175742 Image transmission apparatus including main and sub facsimile units designed to establish radio communicating therebetween responsive to a field strengh detected in the radio signal Jan. 16, 2001
6173169 Device and method for making emergency call in cordless telephone Jan. 9, 2001
6173170 Radio telephone apparatus capable of detecting a drop of power source voltage Jan. 9, 2001
6169895 Landline-supported private base station for collecting data and switchable into a cellular network Jan. 2, 2001
6169905 Digital cordless telephone apparatus Jan. 2, 2001
6167262 Communication apparatus Dec. 26, 2000
6167278 Combination cordless-cellular telephone system Dec. 26, 2000
6167279 Method and system for supporting PACS using a GSM mobile switching center Dec. 26, 2000
6163703 Method for registering portable unit in cordless telephone system by using both wire and wireless links Dec. 19, 2000
6154650 System and method for delivering a call for a mobile station using either a wireless network or a wireline network Nov. 28, 2000
6154665 Radio telephone proximity detector Nov. 28, 2000
6148214 Telephone using service messages for identification signals Nov. 14, 2000
6148213 Method and apparatus for accessing a telephone answering device from a cordless telephone portable unit Nov. 14, 2000
6148205 Method and apparatus for secure registration within an in-home wireless network Nov. 14, 2000
6144853 Method and apparatus for digital cordless telephony Nov. 7, 2000
6144840 Wireless telephone ring detection method for extended battery life Nov. 7, 2000
6141547 Radiotelecommunications system having a mobile terminal that operates both in cellular mode and in cordless mode Oct. 31, 2000
6138035 Mobile communication system having cordless handy phone unit as mobile station Oct. 24, 2000

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