[Serusers] Rewriting SDP Infos for NAT Traversal

[Anthony Chapellier]

Hi,

When an INVITE request is incoming, I need to rewrite VIA Header Field, 
Contact Header Field, (c=) field in SDP message core and (o=) field in 
SDP message core too with IP public adress of UAC. Those are needed by 
my SIP Server before SER Proxy forward the request to him.

I got some success with rewriting Contact Header File by using 
fix_nated_contact() function and (c=) field with fix_nated_sdp("1") 
function. But I don't succeed at all in rewriting (o=) field and 
partially for VIA Header Field.

To do so, I tried to use the following function  :

fix_nated_sdp("8");       No Result :(
forcerport();                  It seems to add real IP public adress and 
port in VIA header field but it's                                     
not rewriting IP private adress

So, finally is it the good way to do this thing or is there something 
wrong with my behaviour ?

Thanks,