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View Full Version : What is a Call back modem and who uses it?



12-10-2001, 07:44 AM
I can find people who sell these things but nothing about how they operate and what system IE: a network for dialing into or an ISP. Any help would be appriciated

12-10-2001, 08:20 AM
Reduces phone charges by having the remote access server dial back to your location after you initially connect.- ok.

12-10-2001, 03:03 PM
Call back was mainly used to give a bit more security on dial in lines. It works by connecting, doing a login sequence, and then hanging up. The host rings back. This way, even if passwords have been cracked, the caller has to be at a phone number which is known and authorised or won't get the return call. I have an idea that MS wouldn't have provision for it ... but any commercial Unix would have it; I think you can do it in Linux. (I haven't used it, but I don't think that a special modem would be needed -- software can handle it).

12-10-2001, 06:15 PM
Yeah, windows can (callback), maybe not win9x, but nt4, win2k, and windowsXP can.