[asterisk-dev] Passing AOC information across channels

[Frank Sautter]

Matthew Fredrickson wrote:
> Are you sure about this?  I can't cite specific references, but a 
> facility message outside the context of a call (including non-call 
> associated signaling connections) seems like it would be a blatant 
> protocol violation.
aoc-e is sent during the diconnect, release or release_complete messages 
(normally during disconnect, when the call is cleared from the network 
side; during release, when the call is cleared from the user side)

> I'll tell you what, I haven't been able to figure which specs to look at 
> for this.  If you (or someone else that knows which ones we're referring 
> to) can give me an idea of which documents to look at, I'll go through 
> them to see if I can offer another opinion on the matter (ETSI 
> references, URLs, etc, ITU-T doc numbers, anything).
take a look at:
ITU-T Q.956 DSSS1 Cause2 Advice of Charge (AOC)
ITU-T X.208 Abstract syntax notation one (ASN.1)
ITU-T X.209 Specification of basic encoding rules for ASN.1

and of course you may need the underlying Q.930, Q.931 and Q.932

regards
  frank sautter