VOICE SENDING DEVICE FOR EXCHANGE SYSTEM

PURPOSE:To enable a response signal from a user to be surely received in course of sending a voice guidance signal by eliminating the frequency component of the response signal from a frequency component corresponding to the voice guidance signal with the aid of a band elimination filter (a BPF). CONSTITUTION:By the service requirement of the user, guidance information is read from a memory 30 and sent to a voice composition circuit 32 in a voice guidance reproduction device 20 of an exchange system 10. Besides, the frequency component of the corresponding band of the guidance signal is eliminated by a switch group 36 among the BEF 40-47 through an LPF 34. Therefore, the frequency component constituting a PB signal among the guidance signals is eliminated by the prescribed combination of the BEF. As the result of that, the PB signal being as the response signal from a PB telephone set 14 is precisely received by the PB signal receiver 22 of the system 10.