Date: Sun, 21 Jan 2001 16:03:02 -0500 (EST) From: Dru <genisis@istar.ca> To: James Wilde <james.wilde@telia.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: OT: ISDN and TCP/IP Message-ID: <Pine.BSF.4.21.0101211559210.12156-100000@genisis> In-Reply-To: <GMEOJBOHGFGFPLBKGFEKOEMMCFAA.james.wilde@telia.com>
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Hi James, You may find the ISDN and PPP articles at the following link helpful: http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/index.htm They're fairly technical, but may provide the missing bit of info you're looking for. BTW, all articles at that link make very good reading and can be downloaded in PDF format. Cheers, Dru On Sun, 21 Jan 2001, James Wilde wrote: > I'd appreciate being allowed to tax the accumulated experience and knowledge > with the following question. > > My company has a modem pool which accepts incoming calls from both analog > and ISDN modems. I have a D-Link router behind my ISDN box but no ISDN > modem. I would like to be able to call the modem pool and connect into our > network. However it doesn't work with a simple dial-up by the router onto > the network. > > Now I know the experts are probably rolling about on the floor laughing at > this point, but I would like to know what it is that prevents this kind of > contact from working, and whether there is a software solution available. > > As I see it, ISDN is merely a carrier, just like the analog lines, and I > can't see that an ISDN modem is going to transmit the information by sending > beeps at 900 hz and 1.3 khz, or whatever the frequencies are, as the analog > lines do. I am assuming that an ISDN modem converts the digital TCP/IP > packets coming from the computer to another digital format for ISDN > transmission, whereupon some part of the modem pool at the other end > converts the ISDN signals back into TCP/IP. > > Thanks for any direct or indirect (e.g. URLs) help with this one, which has > been puzzling me for a while. > > mvh/regards > > James > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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