[OpenSIPS-Users] Contact header modifications

[Răzvan Crainea]

Hi, Maciej!

The behavior you are describing is exactly how OpenSIPS should behave, 
so it's nothing wrong with your setup.
The second affirmation is also right, if you want to change the Contact 
header, you have to use topology-hiding, either the one provided by the 
dialog module, or the B2B module.

Best regards,

Răzvan Crainea
OpenSIPS Solutions
www.opensips-solutions.com

On 09/29/2014 01:33 AM, Maciej Bylica wrote:
> Hi,
>
> Guys could i ask you to share your experience here
>
> Thanks.
>
> 2014-09-25 23:00 GMT+02:00 Maciej Bylica <mbsip at gazeta.pl 
> <mailto:mbsip at gazeta.pl>>:
>
>     Hello,
>
>     I just want to setup Opensips as SIP Proxy node.
>     Release 1.11.2-notls and DRouting module is already in place.
>     I just want to ask you what do you think about Contact header
>     modification in such case.
>     Some of my incoming INVITEs have only Contact header (describing
>     originator, like IPPABX for instance) without Record-Route header.
>     Opensips generates additional Record-Route header but doesn't
>     modify Contact header at all and such request is sent to
>     terminator. As an after-effect all subsequent requests properly
>     match UAs (thanks to the rule hat RR overrides Contact header).
>     First of all is this how Opensips behaves and there is nothing to
>     worry about?
>
>     What if i dont want to disclose Contact header information passing
>     transparently to the other side.
>     I assume that i may use B2B modules or topology-hiding within
>     dialog module or setup Freeswitch for this purpose, am i right?
>     Maybe I should play around with opensips script a little to modify
>     that header?
>
>     Thanks in advance,
>     Maciej
>
>
>
>
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