[OpenSER-Users] Catching 200 OK as part of INVITE CSeq.

[Christian Schlatter]

Alex,

Alex Balashov wrote:
> 
> Greetings,
> 
> I am proxying INVITEs and need to be able to know when the 200 OK that 
> is part of that particular transaction dialogue (same CSeq as the INVITE)
> appears so that I stamp voice-bearing media start in my logs.
> 
> However, I cannot seem to detect it.  I see from the packet capture that
> the 200 OK from the far end of the call does go back through my OpenSER
> proxy (I do record_route() on all methods but REGISTER & OPTIONS as per
> the spec), but I can't seem to programmatically access it in any way.
> Are there special steps required to get at it?
> 
> This is to say, my main route contains:
> 
>   if(is_method("INVITE")) {
>       ...
>   }
> 
> But I never seem to catch anything with it but actual INVITE messages. 
> What gives?  I tried doing
> 
>   if(t_check_status("200"))
> 
> within that block, but without anything that I would describe as 
> success. I never even get another message whose overall transaction 
> method is INVITE even when I dump them all for debugging purposes in the 
> main route.

You might want to have a look at the onreply_route core function:

http://www.openser.org/dokuwiki/doku.php/core-cookbook:1.2.x#onreply_route

You should have access to all replies in the onreply_route[] block.

/Christian


> 
> Insights appreciated!
> 
> Thanks,
> 
> -- 
> Alex Balashov
> Evariste Systems
> Web    : http://www.evaristesys.com/
> Tel    : +1-678-954-0670
> Direct : +1-678-954-0671
> 
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