Voice transmitter for encoding and transmitting a DTMF signal and an audio signal

摘要

A voice transmitter includes a first selector (24) for selecting an output of DTMF encoding means (11) or that of voice-DTMF encoding means (20) ; DTMF transmission control means (23) for monitoring each state, and for controlling selecting operation of the first selector (24) ; DTMF detecting means (12) ; and a second selector (13) for selecting an output of voice encoding means (10) or an output signal selected by the first selector (24) by the DTMF detecting means (12). <IMAGE>