Communication system tracking arrangement

摘要

A communication system call tracking arrangement is disclosed which allows a telephone station user to selectively determine the busy-idle status of any other telephone station served by the same system, without utilizing the communication links between the stations. In operation, the inquiring station has the capability of selecting a target station and for receiving a continuous visual indication of the busy-idle status of the selected target station. In one embodiment, it is possible to selectively enable the tracking feature so that an audible signal is provided at the inquiring station when the target station makes a busy-idle status transition.