Hello,

so far topos was not designed for spiraled traffic, only as a single middle point between caller and callee. To handle SIP spirals, it would need some C coding.

Cheers, Daniel

On 04.08.17 16:32, Carsten Bock wrote:

Hi,

I think, I found one issue with Daniel's new (great) TOPOS module:

I've configured it on my Edge-Proxy (aka. Proxy-CSCF) as a replacement for an SBC and I ran into a strange issue.

Everything works fine, except in one Scenario: Both A and B Party are registered using the same Proxy, so TOPOS is triggered twice: On the originating Leg and on the terminating Leg.

It works properly, if I'm just having one Leg on the Proxy (either because it's going to/coming from the Breakout Gateway or because the B-Party registered using a different Proxy).

It appears to happen only, if the B-Party has a public IP, if no NAT involved (Wtf?!?), it actually happened initially when I called my mother.

I've looked through the source-code but couldn't find a proper solution. Anyone an idea?

Thanks, Carsten

P.S: Please find attached a full trace of such call and the according database entries

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