Recording telephone system equipped with a remote control change-overswitch

Abstract From the Canadian patent

A message device operable with a telephone is provided. The device includes a connection and identification circuit which receives incoming telephone call signals generated from a remote telephone that are transmitted over the public telephone lines. The identification circuit monitors the number of call signals received between a connection and subsequent disconnection of a remote telephone thereto and conditions the apparatus to a stand-by mode when the number of incoming calls received is equal to a predetermined number. When the device is in the standby mode, the circuit monitors the telephone lines for further incoming call signals generated by the remote telephone. If a second …