TONE RINGER

PURPOSE:To make it possible to identify one telephone set from another when one out of many telephone sets installed in the same room or the like receives a call by using an audio signal input means to externally store arbitrary sound in the telephone set using an audio signal input means via a connector for the telephone set and loudening the stored sound when the telephone set receives a call. CONSTITUTION:In an audio signal memory 2, arbitrary voice is stored in advance in the telephone set by an audio signal input means 4 via a connector 3. Next, when a call signal is issued to a subscriber, a call signal detecting circuit 1 detects a call signal and outputs a detecting output. In this case, in order not to cut off output even when the call signal is off, for example, when a period of time for output fall is provided with 2 seconds, and a detecting output is issued from the call signal detecting circuit 1 to the audio signal memory 2, the content of memory 2 is output endlessly. Further, as long as a speaker 6 issues a call signal, or until the speaker 6 is off hooked, particular sound is loudened.