<communications, standard> An extension of the ITU-T V.42 standard modem protocol to included compression using a Lempel-Ziv related technique, which detects frequently occurring character strings and replaces them with tokens. This is similar to the Unix compress utility. Typical compression for text is 50% or better; with nearly 20% gain from synchronous conversion this gives reduces transmission time by almost 60%.
[Details? On-line spec?]
Last updated: 2004-08-02
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Nearby terms: V.34 « V.35 « V.42 « V.42bis » V.90 » V.91 » va