[Asterisk-Dev] Sending ISDN q.931 messages to Zap span?

[Peter Svensson]

On Sat, 20 Nov 2004, John Todd wrote:

> PS: I _swear_ I saw a patch or something in the bugtracker recently 
> about the ability to send messages back to Zap spans without 
> answering them, with particular ISDN response codes.  However, I 
> can't find documentation or notes on this.  I'm looking for something 
> like "Hangup(28)" where "28" is from 
> ./asterisk/include/asterisk/causes.h.  This could apply to pretty 
> much any channel type, since we've mapped Q.931 codes in that file. 
> I know I had a method in mind for hanging up calls before they were 
> even answered, but doing it with specific rejection codes... but I'm 
> darned if I can find those notes.

Would that be the PRI_CAUSE variable?

http://www.voip-info.org/tiki-index.php?page=Asterisk%20variable%20PRI_CAUSE

Peter