[Asterisk-Users] IAX2 Hangup Cause

[reseaux]

Dear List
	im try to look if IAX2 protocol is able to transport an hangup cause from a 
TDM PRI line, as i can see from this link http://www.cornfed.com/iax.pdf 
seems support only few message like congestion,busy,call progress, 
answer,ring,ringing but i cannot transport the Cuase of PRI hangup some idea. 
IF i use the send text feature of IAX2 between 2 * Box? I can receive this 
text?
I design my scenario:

	Site A (AstGateway)							Site B (AstGateway)
Incoming->TDM-> IAX2 |-------|Hangup Cause|------>| IAX2->TDM -> Termination

Thanks for possible help
Dimitri