(Digital Simultaneous Voice and Data) An all-digital technology for concurrent voice and data (SVD) transmission over a single analog telephone line. DSVD is endorsed by Intel, Hayes, U.S. Robotics and others and has been submitted to the ITU for possible standardization. DSVD modems became available in the first half of 1995.
Computer Paper article on DSVD This article, from April 1996, provides information on DSVD technology, product information, and why DSVD should be used.