I am in the process of implementing a new ISDN pri and have a couple of 
questions.  This is a full 24 channels (23 B and 1 D) delivered over a T1 
interface.  The interface looks good and is not showing any errors.  Any help 
that you can provide would be greatly appreciated.
 
1)  What switchtype should be configured in the zapata.conf file when AT&T is 
using CUSTOM?  My understanding is that this equates to the dms100 in Asterisk, 
is this right?  The D channel is coming up just fine, but AT&T tells me that 
they cannot see the B channels.  When I try to make a call I get a slow busy 
and the debug shows an ISDN cause code of 34, no circuit available.
 
2)  Is there a way to see the idle status of a B channel?  When AT&T tells me 
they don't see the B channels coming up, is there a way that I can see this in 
Asterisk???
 
Thanks in advance.
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