On Mon, 2003-06-02 at 12:45, John Harragin wrote: > Thanks to everyone for all the info... > > One more question. Until now, I had succesfully avoided isdn throughout my > computer career... other than having the notion that it was a fairly > troublesome line with data rates several times faster than pots. > > So far from ACC (my pri vendor) my T1-PRI must be b8zs/esf. On the form I > have to fill out most of the pri enteries are listed under ISDN/PRI so I'm > not really sure which questions are particular to pri. > > My usage will 23 voice (with an occational fax) plus the d channel. What is > the relationship between pri & isdn - is it considered isdn? If so, what do > I need to know about that?
BRI is ISDN with 2 64K B channels and a 16K D channel. PRI is ISDN with 23 64K B channels and a 64K D channel. B channels carry the data or voice, and D channels are used in call setup, monitoring, teardown, and any other config/signalling. -- Steven Critchfield <[EMAIL PROTECTED]> _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
