Date: Sun, 24 Feb 2002 17:49:36 -0600 From: "Matthew D. Fuller" <fullermd@over-yonder.net> To: Joe & Fhe Barbish <barbish@a1poweruser.com> Cc: "Maren S. Leizaola" <maren@leizaola.com>, FBSDQ <questions@FreeBSD.ORG>, Rod Person <roddierod@yahoo.com> Subject: Re: SQUEEEZING the most bandwidth out of a 33.6 modem Message-ID: <20020224174936.F47910@over-yonder.net> In-Reply-To: <LPBBIGIAAKKEOEJOLEGOKEKKCIAA.barbish@a1poweruser.com>; from barbish@a1poweruser.com on Sun, Feb 24, 2002 at 11:42:42AM -0500 References: <Pine.WNT.4.43.0202242343560.-408861@hades.leizaola.com> <LPBBIGIAAKKEOEJOLEGOKEKKCIAA.barbish@a1poweruser.com>
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On Sun, Feb 24, 2002 at 11:42:42AM -0500 I heard the voice of Joe & Fhe Barbish, and lo! it spake thus: > > | The connection speed using a 56k enabled modem is a function of > | phone line conditions and speed of PC (cpu mhz & bus mhz). It's only a function of the CPU speed if you have a POS software modem. And unless you've got a 286 around, the bus speed won't be your bottleneck either. And there is NOTHING keeping you from connection V.90 at 56000 baud; the 53k limit is a X2 limitation, and I haven't seen anybody using X2 in years. > Question? Shouldn't V.90 modems be able to negotiate a speed fall forward > if the link quality is there? Or did they forget to put that in the > standard? In theory, it's in there. In practice, *VERY* few modems will even attempt it. > of each individual phone circuit vary greatly. If the circuit is so poor > when you dial in to your ISP that you only get connected at 48000 the likely > hood of it getting better during it's use life time is very unlikely to > none. By setting s38 to some minimum value the modem hardware will hangup If clean 48000 baud connections qualify as "only", I'd love to know what sort of telco YOU'RE working with... -- Matthew Fuller (MF4839) | fullermd@over-yonder.net Unix Systems Administrator | fullermd@futuresouth.com Specializing in FreeBSD | http://www.over-yonder.net/ "The only reason I'm burning my candle at both ends, is because I haven't figured out how to light the middle yet" To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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