[OpenSIPS-Users] Problem with topology hiding when hairpinning a call

Bogdan-Andrei Iancu bogdan at opensips.org
Tue Feb 6 12:24:05 EST 2018

Hi Andreas,

Do you do callid changing with TH ? also the TH is done on both passes 
through OpenSIPS ?

Best regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
OpenSIPS Summit 2018

On 02/05/2018 08:14 PM, Andreas Sikkema wrote:
> Hi,
> I'm playing with the topology hiding module and I am running into a 
> problem when a call is sent from the inside of OpenSIPS to the 
> outside, which is then received back on the outside of OpenSIPS to 
> sent to the inside of OpenSIP. Calls being answered on the inside or 
> outside work fine, it's just with hairpinning I have this problem.
> The call setup works fine, but as soon as the call is answered, I am 
> seeing a lot of lines like this:
> Feb  5 18:52:38 [31118] WARNING:dialog:dlg_onroute: tight matching 
> failed for BYE with 
> callid='ee75e7e72504b88f57959fe48d3faacc at 192.168.xxx.xxx'/46, 
> ftag='1640688292'/10, ttag='1456089971'/10 and direction=0
> Feb  5 18:52:38 [31118] WARNING:dialog:dlg_onroute: dialog 
> identification elements are 
> callid='BB_KhVSWzZ+NWR9RVVaMXFoNXpHXFtqLzVndxRWCDIoMzAPQVxcfXhma2FBV1p9fA--'/71, 
> caller tag='1640688292'/10, callee tag='1456089971'/10
> Is there something obvious I am doing wrong? The config is basically 
> the generic topology hiding module example. I was hoping to not have a 
> seperate instance for both directions ;-)
> Thanks!
> -- 
> Andreas
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