[SR-Users] PRACK support in RTPENGINE module?

Daniel-Constantin Mierla miconda at gmail.com
Mon May 4 19:49:19 CEST 2020


Hello,

Chris mentioned that rtpengine_answer() is also not supporting (or is
ruling out all request types but ACK), so the C code is limiting in both
cases, no matter using rtpengine_manage() or rtpengine_answer().

The rtpengine manage() was built as a wrapper around offer()/answer()
and it makes the decision of which one is executed in various cases
(request/reply/failure route), but not what offer()/answer() functions
do internally.

So in this case the code has to allow execution for PRACK, it was an
omission, likely not a scenario that popped up so far.

Cheers,
Daniel

On 04.05.20 19:22, Alex Balashov wrote:
> Hello Chris,
>
> rtpengine_manage() is just a wrapper that makes context-sensitive
> invocations of rtpengine_offer() and rtpengine_answer(), so that you
> don't have to choose which of them to call manually. But it's not
> perfect. 
>
> There are nevertheless situations where this manual use of the
> offer/answer functions is necessary, and it sounds like this is one of
> them.
>
> There is a larger question of whether rtpengine_manage() should support
> PRACK; it seems like the answer is yes. But this lacking cannot be
> framed as "RTPEngine doesn't support PRACK" or anything like that.
> RTPEngine can support any SDP-bearing request and reply, since RTPEngine
> does not care about SIP semantics per se.
>
> -- Alex
>
> -- 
> Alex Balashov | Principal | Evariste Systems LLC
>
> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda




More information about the sr-users mailing list