With a PRI you will lose 1 channel. You will have 23B channels which users can connect to a 1 D channel which will be used for signaling, etc. Qwest is probably talking about NFAS...Non-facilitated Associated signaling, or something to that affect. In essence what you do with NFAS is have a span that is your primary D channel, and another one that is your backup and then the rest of the spans can be "pri" but have 24 B channels. Word of caution...NFAS becomes more complicated the more spans that are in the NFAS group. Some telcos say they can do it but really don't know what they're doing, hence causing problems down the road. -----Original Message----- From: usr-tc-admin@mailman.xmission.com [mailto:usr-tc-admin@mailman.xmission.com]On Behalf Of Terry Kennedy Sent: Wednesday, June 05, 2002 7:51 PM To: usr-tc@lists.xmission.com Subject: [USR-TC] PRI and b channels With out coming off as a junior idiot here, I need to ask a question about PRI. In our town they said they would never get PRI so I never read most of the posts here concerning them. We used CT1's and I know (basically) how they work. Now they have PRI and I am converting -- Ok, so enough rationalizations for asking stupid questions. Here's the question: Do I lose 1 channel on every span for the b-channel or does just one of the cards in the rack need to lose the channel? Qwest says that they support 11 spans with one b-channel, so it made me curious on the 3com equipment. Anyone have a quick run through on setting these up or just a link I can read somewhere? These are DSP's by the way. Thanks, Terry Kennedy _______________________________________________ USR-TC mailing list USR-TC@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/usr-tc