(PM) V.42bis on 56K connection? (fwd)

MegaZone (megazone@megazone.org)
Sat, 20 Jun 1998 18:18:12 -0700 (PDT)

Once upon a time Joe Hartley shaped the electrons to say...
>The compression protocol of V.42BIS intrigued me - will either V.90 or
>K56Flex use this compression successfully?

Yes. V.42bis is just data compression. It doesn't care what the carrier
protocol is. There are even a couple of ISDN devices that can use V.42bis.

>My guess as to how the protocols are named leads me to conclude that V.42bis
>is the compression part of a V.42 connection. If the connection protocol

Sorry, that's wrong. There is no such thing as a V.42 connection. The last
modem connection standard is V.34. V.42 is *error correction* and V.42bis
is *data compression*. BOTH are still usable with the PCM modems.

-MZ

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