Abstract: A cordless phone includes a base station coupled to a local line and a personal station communicating with the base station by radio. The base station includes a first channel unit for operatively coupling the personal station to the line so that communication between the personal station and an external station connected to the local line is carried out via the local line and the base station. A second channel unit is provided in the phone for operatively coupling the personal station to a digital highway through which digital data is transmitted so that extension communication between the personal station and an internal station, such as electric equipment, connected to the digital highway, is carried out via the digital highway and the base station. The cordless phone further has a switching circuit for selectively activating either one of the first or second channel units, based on control information supplied from the local line, the personal station or the digital highway.

Abstract: A cordless phone includes a base station coupled to a line and a plurality of a personal stations communicating with the base station by radio. The base station includes a call detecting circuit for detecting a calling signal corresponding to a ringing tone when the cordless phone is called by an external station, a control signal generator for generating a control signal in synchronism with the calling signal detected by the call detecting circuit, and a circuit for simultaneously transmitting to the plurality of personal stations the control signal generated by the control signal generator.