Adaptive channel selection method for a cordless telephone

Adaptive digital RF communication in a cordless telephone

Apparatus and method for allocating channels in plural communica

Apparatus and method for enhancing telephone call quality of fac

Apparatus and method for generating a calling tone of...

Apparatus and method for prolonging battery life in a portable t

Apparatus and method for synchronizing a cordless telephone base

Apparatus and method of contention resolution for a plurality of

Apparatus for enhanced voice quality in multiple cordless...

Arrangement for configuring multiple portable units for communic

Arrangement with a short-range radio system

Auto sensing home base station for mobile telephone with...

Auto sensing home base station for mobile telephone with...

Auto sensing home base station for mobile telephone with...

Calling apparatus and calling method in a telephone

CDMA mobile terminal apparatus

Cell reselection signalling method

Cellular communication system

Cellular communication system

Cellular telephone with programmable authorized telephone...