[asterisk-dev] SIP_HEADER in dialplan from different states of SIP dialog?
abalashov at evaristesys.com
Mon Jul 7 17:06:02 CDT 2008
I've got a problem I was hoping someone from the developers' community
could help me with.
I'm running outbound calls using a B2BUA product for call progress
detection that sets the disposition of the call in the 200 OK sent back
to Asterisk in response to its INVITE.
Is there some way I can get at this value either in the dial plan, or in
Of course, I realise that deep inspection of particular states of the
SIP dialog aren't really meant to be possible from within something as
high-level as the dial plan. However, what I assumed was that if I punt
the execution to a macro when the call is picked up using the M argument
to Dial(), e.g.
exten => ...,n,Dial(SIP/num at GW,M(outbound_macro))
Then, because, in practise that macro is called on pickup (i.e. 200 OK),
I would have assumed that the message from which SIP_HEADER() is parsing
the headers is the 200 OK.
But it's not. My tests show it's still looking at the headers in the
initial outgoing INVITE.
So, the question is - without hacking the code, is there some way I can
read the value of a header that is returned in a 200 OK in an INVITE dialog?
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