Path: utzoo!telecom-request Date: 29 Apr 91 18:19:59 GMT From: nanook@eskimo.celestial.com (Robert Dinse) Newsgroups: comp.dcom.telecom Subject: Re: Decreasing Costs of Transmission Message-ID: Organization: ESKIMO NORTH (206) 367-3837 SEATTLE WA. Sender: Telecom@eecs.nwu.edu Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 11, Issue 323, Message 5 of 11 Lines: 16 In article , fulk@cs.rochester.edu (Mark Fulk) writes: > Now a phone call takes about 32 kb/s; let's say 50 kb/s to make the There are multiplexing schemes that only require 32kb/s for a voice channel but they destroy high speed data and fax so are rarely used in this country. The normal T1-cxr uses 64kb/s (8 bits times 8 Khz sample). > 20 phone calls take 1 Mb/s (actually, T1 line at 1 Mb/s handles 32 The standard T1 rate is 1.544 Mbits/sec and carries 24 not 32 channels.