They are quite correct. In the USE (and anywhere using our telco standards)
PRI is based on channelized T1. That gives you 23B+D - ie 23 data channels
and 1 signalling channel. Flat channelized T1 is 24 data channels - but no
ISDN of course.
In the rest of the world PRI is based on E1, which gives you 30B+D. 30
data channels, and one signalling channel that is twice the size of the
data channels. Channelized E1 is 32 data channels.
-MZ
-- Livingston Enterprises - Chair, Department of Interstitial Affairs Phone: 800-458-9966 510-426-0770 FAX: 510-426-8951 megazone@livingston.com For support requests: support@livingston.com <http://www.livingston.com/> Snail mail: 6920 Koll Center Parkway #220, Pleasanton, CA 94566 See me in person: Internet Expo, Boston, MA, October 16-17, Booth 422 ;-)