Date: Tue, 14 Dec 1999 10:43:00 +0100 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Juergen Lock <nox@jelal.kn-bremen.de> Cc: freebsd-isdn@FreeBSD.ORG Subject: Re: 300 Baud V.21 modem for I4B Message-ID: <2844.945164580@critter.freebsd.dk> In-Reply-To: Your message of "Tue, 14 Dec 1999 03:00:31 %2B0100." <199912140200.DAA20856@saturn.kn-bremen.de>
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In message <199912140200.DAA20856@saturn.kn-bremen.de>, Juergen Lock writes: > But shouldn't just about any analog modem still be able >to talk V.21 too? Or do the recent ones no longer? >(Could be you have to send some command to allow >non-error-corrected connections.) I don't know of any modems which can't do V.21. > I wonder if i still have that 1200/75bps atari sio driver >somewhere that i had to hack for V.23... (yup that was an >asymmetric standard, and the uart had only one clock for both >directions so the 75 bps had to be done in software.) As far as I recall V.23 is also a FSK standard, and as such it should be easy to adapt my code to do it (since the uart is already done in software). But I don't have any of the "old" V.* documents, I only have them from V.32 and forward... -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop." FreeBSD -- It will take a long time before progress goes too far! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isdn" in the body of the message
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