[OpenSIPS-Users] ACK with wrong RURI

[Liviu Chircu]

On 15.06.2021 08:57, Miha via Users wrote:
> when call is not pickup on teams and just canceled I get 603 Declined 
> which opensips send it further to SBC (our main sbc). When we get back 
> ACK and from SBC, there is wrong RURI and opensips does not relay this 
> ACK to MS teams.

Hi Miha,

I have stopped reading after this point. On a negative reply, there is 
no concept such as "relay this ACK to MS teams".  The negative ACK is 
produced hop-by-hop, there is no need to wait for an original ACK to be 
produced by UAC and carried end-to-end, as I expect OpenSIPS to 
_immediately_ generate and reply with ACK to MST once it received that 
603 reply.  And in parallel with producing the ACK, OpenSIPS will also 
relay the 603 to SBC side.

Do your SIP traces confirm the flow I described above?  Could you share 
a .pcap with me if not? Thanks!

Best,

-- 
Liviu Chircu
www.twitter.com/liviuchircu | www.opensips-solutions.com
OpenSIPS Summit 2021 Distributed | www.opensips.org/events

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