Path: utzoo!attcan!uunet!mailrus!accuvax.nwu.edu!nucsrl!telecom-request From: john@zygot.ati.com (John Higdon) Newsgroups: comp.dcom.telecom Subject: Re: Do Modem Users Congest The Phone Network? Message-ID: <1759@accuvax.nwu.edu> Date: 3 Dec 89 06:34:19 GMT Sender: news@accuvax.nwu.edu Organization: Green Hills and Cows Lines: 23 Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 9, Issue 548, message 1 of 8 In article , eli@robechq.UUCP (Robec Corporate Office) writes: > Ohh, I'll probably get my head handed to me on this one, since I'm not > really sure what I'm talking about, but I thought the reasoning behind > added charges for modem usage were because modems take up greater > bandwidth, in fact the bandwidth of several voice calls. Is this > true? Absolutely, positively not. Bandwidth is not dynamically allowcated by some analysis of the sonic material on the line, but is fixed by the telco in the transmission system involved. In digital transmission, if a voice channel is 64KB, then it's 64KB whether Aunt Millie is discussing recipies, your mother-in-law is yelling at you, or my Trailblazer is talking to another site. It would be a neat trick indeed if you could automatically get extra bandwidth out of a telephone connection on demand. The audio leased line department would go out of business in a hurry! John Higdon | P. O. Box 7648 | +1 408 723 1395 john@zygot.ati.com | San Jose, CA 95150 | M o o !