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- Path: sparky!uunet!uunet.ca!yuggoth!rbharding
- From: rbharding@yuggoth.org (Ron Harding)
- Newsgroups: comp.sys.amiga.datacomm
- Subject: Re: Modem Terminology is Confusing
- Distribution: world
- Message-ID: <rbharding.039g@yuggoth.org>
- References: <rbharding.038j@yuggoth.org> <OAHVENLA.92Dec23181716@lk-hp-4.hut.fi>
- X-NewsSoftware: GRn 1.16e (7/4/92) by Mike Schwartz & Michael B. Smith
- Date: 23 Dec 92 20:02:07 EST
- Organization: The Leningrad Carrot Conspiracy
- Lines: 47
-
- In article <OAHVENLA.92Dec23181716@lk-hp-4.hut.fi> oahvenla@snakemail.hut.fi (Osma Ahvenlampi)
-
- Osma corrected me on a few issues about V.32, HST, etc. I bow to a superior
- authority.
-
- > Most current high speed modems offer V.21, Bell 103, V.22, Bell 212A, V.22bis,
- > V.32 and V.32bis besides fax compatibility, MNP2-4, MNP5, V.42 and V.42bis.
- > Some (such as USR HST and ZyXEL) offer also a proprietary 16800 bps protocol.
- > Hayes Optima 144 may be a fine modem, and probably is, but it definitely is
- > not alone. And it definitely does NOT support "everything there is except HST".
-
- Indeed not. It does support all those I listed (except HST). I suspect the
- USR HST modems come closer to supporting "everything there is."
-
- > >TIES : "Time-independant Escape Sequence" Used by Hayes-pseudo-compatible
- > > modems. The sequence consists of the five characters: "+++AT",
- > > that is, the Hayes sequence, but without the guard times, followed
- > > by the "AT" characters that must preceed any Hayes-compatible
- > > command sequence.
- >
- > Bull. I have not seen a single modem that would react to "+++AT", every one
- > of them have used the "delay, three characters, delay" escape sequence. In all
- > of the cases the delay lenght and escape code have also been user definable,
- > usually with S registers 12 and 2, respectively.
- > This is of course with modems using AT command set, extended or otherwise.
-
- Such modems do exist. They are made by people who don't want to pay the
- licence fees for the Hayes sequence. There are at this very moment legal
- proceedings between Hayes and some other modem makers (the name of the
- central player eludes me) who use the TIES sequence I described. The other
- makers have Hayes in court over what they claim is misleading advertising by
- Hayes about the pitfalls of the TIES sequence. My personal belief is that
- the Hayes ads are not misleading, just over-reacting.
-
- I think the majority of modem-makers have licence agreements with Hayes
- and use the Hayes sequence.
-
- > Even if it might seem so at points, this post is not intended as a flame. I
- > felt it was necessary to correct especially the escape sequence part, and gave
- > some comments about other parts, while on the subject.
-
- No flame felt. But there _are_ TIES modems out there.
-
- +---------------------------------------------+--------------------------------+
- | Nuke'Em: Get them before they get you! | Ron Harding |
- | Another quality home game from Butler Bros. | uunet.ca!yuggoth!rbharding |
- +---------------------------------------------+--------------------------------+
-