Subscriber telephone answering machine '' Proton AO-01 ''.

Cassette tape recorders, stationary.Since 1991, the telephone answering machine "Proton AO-01" has been produced by the Kharkov radio plant "Proton". The answering machine "Proton A0-01" is designed for automatic connection with the calling subscriber, recording the information received from him in the absence of the called subscriber, recording the conversation of the subscribers called to the calling subscriber, reproducing the recorded information.