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- Newsgroups: comp.dcom.modems
- From: fred@genesis.demon.co.uk (Lawrence Kirby)
- Path: sparky!uunet!pipex!demon!genesis.demon.co.uk!fred
- Subject: Differences between modems...
- Distribution: world
- References: <723940209.AA00624@cswamp.apana.org.au>
- Organization: BT
- Lines: 27
- Date: Mon, 14 Dec 1992 15:59:56 +0000
- Message-ID: <724348796snx@genesis.demon.co.uk>
- Sender: usenet@demon.co.uk
-
-
- In article <723940209.AA00624@cswamp.apana.org.au> Arthur@cswamp.apana.org.au writes:
-
- >
- >On Mon 30 Nov at 22:00 fred@genesis.demon.co.uk (3:713/602) wrote
- >to All:
- >
- > f> The thing about V.42bis is that it doesn't specify how a
- > f> modem should determine whether the data is compressible
- > f> or not.
- >
- >CCITT V.42bis Appendix II, section II.3, Calculation of
- >compresion performance:
- >
- >"The calculation of compression performance may be expressed as
- >the number of charcters received by an encoder divided by the
- >number of octets transferred from the encoder (to the error
- >control function). The count of characters and octets should be
- >set to zero on receipt of a C-INIT request."
- >
-
- Does it specify when the transmitter should/should not send data compressed?
-
- -----------------------------------------
- Lawrence Kirby | fred@genesis.demon.co.uk
- Wilts, England | 70734.126@compuserve.com
- -----------------------------------------
-