This technology can also be used by private consumers as an answering service, or "voice mail" system. Anyone who calls a telephone with such a system can leave a message, which will be converted digitally into ones and zeros and stored in the memory bank.
語音存送系統和語音合成存放聲音的裝置原理相似，僅是數位編碼方式不同；用戶只要向電信局租用一個音箱，凡有人打電話給他，碰上線忙或沒人接聽，電話便自動轉進音箱，打電話的人照常講話，語音存送系統會將聲音轉換為 0 與 1 的數碼，存入記憶體中，口信便存入音箱。