[OpenSIPS-Users] Parallel forking with topology_hiding module

Bogdan-Andrei Iancu bogdan at opensips.org
Fri May 8 11:47:43 CEST 2015

Hi Ibrahim,

The call-id is changed at call level, so it will be the same for all 
resulting branches. Even after TH, the branches still belong to the same 


Bogdan-Andrei Iancu
OpenSIPS Founder and Developer

On 27.04.2015 12:48, ibrahim tunali wrote:
> Hello,
> I made a quick test with parallel branch over topology_hiding module. 
> As you know parallel branch create new via branch param with increased 
> suffix (.0 .1 .2 etc.), call-id field same for all branches.
> I expect that topology_hiding create different call-id for branches 
> but same encoded id for all branches. This expected behavior for 
> topology_hiding or via branch param also can use for calculation of 
> encode call-id function.
> Example SIP call log found at 
> https://gist.github.com/itunali/56fb901be399254bbd12
> Regards,
> Ibrahim
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