[OpenSIPS-Users] on routing invite's in a trunk context.

johan johan at democon.be
Fri Oct 6 14:28:46 UTC 2023

This is a general question on routing (to be honest: it is a really 
strange case).

A has a sip trunk to B (opensips), B has a sip trunk to C

A sends an invite to B with contact header A'   and record-route header 
to A''

B string the record_route header , calls topology hiding and droutes the 
call to C

C sends 200 OK back but it needs to be routed on the content of the 
contact header.

Now how does this route to A ?   Is this the default 
topology_hiding_match() case ? Or do I need to do something special ?

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