Date: Sun, 21 Jan 2001 17:18:38 +0100 From: "James Wilde" <james.wilde@telia.com> To: <freebsd-questions@FreeBSD.ORG> Subject: OT: ISDN and TCP/IP Message-ID: <GMEOJBOHGFGFPLBKGFEKOEMMCFAA.james.wilde@telia.com> In-Reply-To: <Pine.SOL.4.10.10012131213340.16390-100000@gorf.gpcc.itd.umich.edu>
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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
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