Also sprach Terry Kennedy
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.
DSP, with anything other than an ancient vintage of software will support NFAS. NFAS = Non-Facility Associated Signalling NFAS is the setup whereby one D channel (note: not B channel) carries the call signalling for more than on PRI span. Each B channel carries an individual call, a D channel carries the call control information for the B channels on the span (or multiple spans in the case of NFAS). We don't use NFAS here because of the hassle in coordinating which spans have the D channels (and backup D channels) with the telco. The extra B channels that you get from running NFAS aren't worth the hassle as far as I'm concerned. :) -- Jeff McAdams Email: jeffm@iglou.com Head Network Administrator Voice: (502) 966-3848 IgLou Internet Services (800) 436-4456