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- Newsgroups: comp.dcom.modems
- Path: FreeNet.Carleton.CA!an171
- From: an171@FreeNet.Carleton.CA (Anthony Hill)
- Subject: Re: Sportster V.34 question ?
- Message-ID: <DMC45D.B1M@freenet.carleton.ca>
- Sender: an171@freenet5.carleton.ca (Anthony Hill)
- Reply-To: an171@FreeNet.Carleton.CA (Anthony Hill)
- Organization: The National Capital FreeNet
- References: <4elno7$9l6@nms.telepost.no> <eric-0102960014450001@sobt.accessorl.net> <DM9nBt.ELr@freenet.carleton.ca> <eric-0402961635440001@sobt.accessorl.net>
- Date: Tue, 6 Feb 1996 03:24:48 GMT
-
-
- Eric Shaw (eric@accessorl.net) writes:
- > In article <DM9nBt.ELr@freenet.carleton.ca>, an171@FreeNet.Carleton.CA
- > (Anthony Hill) wrote:
- >
- >> The reason for this is that two modems with v.8 enabled will not
- >>connect using vFC, only with v.34, v.32bis/terbo, or lower.. If you
- >>disable v.34 with the S56.6=1 command, you can still connect with vFC to a
- >>modem that supports vFC as it's only 28.8 protocol, but you can not make a
- >>vFC connection to a modem that supports both vFC and v.34. This actualy
- >>kinda makes sense when you think of it.
- >
- > How does this make sense? On other modems, when you disable v.34, it just
- > disables v.34, and disabling v.FC just disables v.FC. You can even make
-
- Well, since I've never seen a Rockwell based modem which has a
- command to disable v.8 in the first place, I'd suspect that it
- automatically disables that as well when you disable v.34, whether you
- want v.8 disabled or not.
-
- > the dialing modem prefer either v.FC or v.34, while disabling neither, by
-
- The USR is missing this command, of course the only reason why
- you'd need that is if one of the modems is somewhat less then functional.
-
- > using the +MS command that USR does not support.
-
- USR supports (at least the Sportster) supports all the commands
- that are availible through the +MS command, so they use a different
- command set from Rockwell, who cares, so do AT&T, Motorola, Telebit,
- Multitech, etc. etc. ad nauseum. I'm not sure if the Couriers support the
- &U command yet though (I really don't know why USR added that to the
- Sportsters and not the Couriers.. ah well).
-
- >>non-ITU-T connect protocols such as vFC (or HST, or PEP). I think
- >>v.32terbo managed to sneak in there since it's really just an extension of
- >>v.32bis, and not a whole new protocol.
- >
- > Isn't v.FC also an extension of v.32? otherwise, why is it referred to as
- > "v.32 Annex A?"
-
- Huh? v.32 Annex A is NOT vFC, or even anywhere close to it!.
- That annex was added to v.32 WAY back in like 1989 or something, and it
- did not push the speed up past the 9600 level that v.32 has always run at.
- vFC is based on VERY different technology from v.32, or even v.32bis or
- v.32terbo. It's based on an early draft of v.34. I've never before seen
- it refered to as "v.32 Annex A".
-
- Anthony
-
- --
- Anthony Hill | an171@FreeNet.Carleton.CA
-