An automatic voice announcement apparatus for sending an automatic voice announcement message to a subscriber connected to an exchange from the beginning of the message includes: a message receiving memory for receiving a voice message recording and playback commands from a high-level processor; a digital...http://www.google.es/patents/US6671352?utm_source=gb-gplus-sharePatente US6671352 - Automatic voice announcement apparatus and control method therefor
Automatic voice announcement apparatus and control method therefor
