I'm afraid that isn't so. You can order channelized and non-channelized T-1s to do whatever you want with. So there is a big difference between an ISDN PRI (and all of the associate ISDN stuff - D channel, etc) and a run-of-the-mill T-1 (and its total lack thereof). Placing a CSU/DSU on the end of a T-1 gives you access to 24 x 64 kbps timeslots. Often times there is but one port, providing you with a single <= 1.536 kbps serial data stream. Also, multiport models are available, and you can divide the timeslots as necessary between the ports. In some rare cases, the end user equipment is built with a T-1 interface and connects directly to the telco local loop.
The use of T-1s by telcos for bearing voice is the historical one. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=37995&t=37983 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
