[Kamailio-Users] CANCEL can't be forward!

Iñaki Baz Castillo ibc at in.ilimit.es
Wed Sep 10 10:25:24 CEST 2008


El Wednesday 10 September 2008 10:14:23 BERGANZ François escribió:
> hello a problem with my CANCEL frames!
>
>
>
>
> user-------openser------asterisk
>
> invite>>>>>>>|>>>>>>invite
> ringing<<<<<<|<<<<<<ringing
> cancel>>>>>>>|
>
> in fact, I don't know where forward the cancel in stateless!
> I have no information in the frame to forward it to the right asterisk (one
> for g711, one for g729...)


RFC 3261

16.11 Stateless Proxy
   [...]
   Stateless proxies MUST NOT perform special processing for CANCEL
   requests.  They are processed by the above rules as any other
   requests.  In particular, a stateless proxy applies the same Route
   header field processing to CANCEL requests that it applies to any
   other request.


This is, if you proxy works in stateless, you must treat a CANCEL as it was a 
completely new INVITE. So, if you receive a CANCEL do exactly the SAME to 
decide the destination as if it was an INVITE. No more.



-- 
Iñaki Baz Castillo
ibc at in.ilimit.es




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