PURPOSE: To utilize a voice mail from any telephone set by using a voice for a command transmitted from an opposite telephone set after the end of connection with the opposite telephone set.

CONSTITUTION: A converter 5 appplying A/D, D/A conversion to a voice signal and a voice recognition section 6 recognizing a transmitted command are connected to a telephone line 2, and a disc memory 8 storing the voice signal is connected to a control section 7 controlling the storage of the voice signal. When the voice mail device is connected to the opposite telephone set, a guide message in voice stored in advance is transmitted and the opposite party receiving the guide message responds to the voice mail device 4. The response is conducted in voice and recognized by the voice recognition section 6 and the required operation is performed. Thus, it is possible to utilize the voice mail from any telephone set.