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Redirected from: simultaneous voice and data

Definition: SVD

(Simultaneous Voice and Data) The concurrent transmission of voice and data by modem over a single analog telephone line. The first SVD technologies on the market were Multi-Tech's MSP, Radish's VoiceView, AT&T's VoiceSpan and the all-digital DSVD, endorsed by Intel, Hayes and others. See VoiceView.