[Spce-user] topology hiding

H Yavari hyavari at rocketmail.com
Sun Jan 18 01:16:20 EST 2015

Hi,Ok but I want to know that is it not dangerous when ip address of your server is in all of sip messages that transmitted on internet?

 "Record-Route: <sip:;nat=yes;ngcplb=yes;r2=on;socket=ws:;ftag=vsDHKlXKHwlExWk7GymB;lr=on> "

Regards,H. Yavari
      From: Andrew Pogrebennyk <apogrebennyk at sipwise.com>
that is not possible to hide the record-route and via, as they are added
by the internal components of SPCE, but the details of the A leg are
hidden from the B leg. E.g. the call flow is like this:
A -> lb -> proxy -> sems -> lb -> B
The sems is doing topology hiding, but it's not facing the clients
directly so A is gonna receive the via and record-route headers of the
lb and proxy and B those of the lb. It's like communication through the
proxy between two parties, never has been a problem for us.


On 12/03/2014 07:04 AM, H Yavari wrote:
> Hi,
> I have some SIP trunk (peers) with SPCE. I read in the wiki that
> tolpology hiding or B2BUA is enabled in the spce but when I see the
> logs, there are record-route or VIA info's in the header of SIP messages.
> So is there any config to enable the topology hiding? 
> Thanks for reply.
> Regards,
> H. Yavari

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