Digital telephone system and protocol for joint voice and data exchange via pots line

摘要

A telephone system connects to a plain old telephone service (POTS) line and includes a modem connected to the POTS line. A telephone transceiver and a data device are coupled to the modem to provide a simultaneous two-way data and voice exchange over the POTS line by detecting data for transfer and allocating bandwidth between voice and data signals to accommodate the exchange.