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- Path: mips.pfalz.de!not-for-mail
- From: naddy@mips.pfalz.de (Christian Weisgerber)
- Newsgroups: comp.dcom.modems
- Subject: Re: Online Fallback/fall forward on USR Sportster 14.4
- Date: 4 Mar 1996 13:54:53 +0100
- Message-ID: <4hep6t$v9q@mips.pfalz.de>
- References: <obg.825016328@nada.kth.se> <DnEIMx.FxC@freenet.carleton.ca> <obg.825378142@nada.kth.se> <4h567s$q2i@hpbs2500.boi.hp.com>
- NNTP-Posting-Host: mips.pfalz.de
-
- sbutler@boi.hp.com (Sylvan Butler) writes:
-
- > Fall-forward is:
- > Not present in v.32
-
- There's nothing in the specs that keeps a V.32 modem from switching from
- 4800 to 9600bps. Since V.32 doesn't support rate renegotiations this
- requires a retrain, but that holds true for fallbacks, too.
-
- > Standard but not required in v.32bis
- > Standard and required in v.34
-
- The situation for V.32bis and V.34 is the same: rate renegotiations must
- be supported, but there are no rules governing the conditions under
- which a rate renegotiation is initiated or how a modem decides which
- speeds to accept. If a V.32bis modem implements a decision strategy of
- never initiating a rate change and always refusing to step up in speed
- it is still perfectly compliant to the respective Recommendations.
-
- --
- Christian 'naddy' Weisgerber naddy@mips.pfalz.de
- See another pointless homepage at <URL:http://home.pages.de/~naddy/>.
-