[OpenSIPS-Users] Is there a way to Change SIP Header CONTACT field

Zilla Sun zilla1000 at gmail.com
Tue Jun 15 15:54:45 CEST 2010

I setup Opensips with Rtpproxy between our SIP Server and remote GW
(behind NAT). I got most of the part work, and having a problem with
contact field. I would like to replace the contact field IP address -
but can not find a way doing it. this is the deailts - 

SIP Server - <--> Opensips <--> Nat <--> SIP GW 

Due to the SIP Server setup, I need to replace the contact field IP
address of an INVITE sending from SIP GW ( to 

Thanks for any advice.
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