(DSVD) A technique supported by some ref="module.php?name=Lexikon&file=search&eid=1&query=modems">modems for multiplexing compressed speech with digital data for transmission over a normal telephone line. DSVD isn' t standardised yet, so generally you have to have the same make of modem at both ends for it to work. [How does it work? Which modems? references?] (1997-06-05)