[OpenSIPS-Users] Call flow issues

[Bogdan-Andrei Iancu]

Hi Daniel,

You can try changing the Contact header (at put your local ip there) 
using textops functions (like subst) :
    http://www.opensips.org/html/docs/modules/1.4.x/textops.html#id2500681

Regards,
Bogdan

Daniel Corbe wrote:
> Hi,
>
> I'll do my best to explain this as concisely as possible.  I have an 
> access-side network where most of my endpoints live out on the 
> Internet and they all use my OpenSIPS server as their outbound proxy 
> and registrar; however, the tenants do not live in OpenSIPS and I'm 
> not using a radius server for AAA on REGISTERs. 
>
> I am passing REGISTER requests up stream to my network core, like so:
>
> route[2]
> {
>         setflag(6);
>         fix_nated_register();
>         fix_nated_contact();
>         force_rport();
>
>         # We must handle replies for registrations, for caching and 
> location
>         # tracking purposes.
>         t_on_reply("1");
>         t_on_failure("1");
>
>         # Check for digest
>         if (dummy_www_authorize(""))
>         {
>                 xlog("L_INFO", "REGISTER: No Digest, sending 
> challenge\n");
>                 www_challenge("", "0");
>                 exit;
>         }
>
>         # Digest was good if we get here
>         save("location", "0x02");
>
>         # Relay register to porta
>         t_relay("udp:216.151.151.100:5060 <http://216.151.151.100:5060>");
>         exit;
> }
>
> The problem is that when the UA is NOT being natted and has a public 
> Internet address, the Contact HF is not being changed, therefore 
> INVITE requests destined for the UA never go through my OpenSIPS 
> system and instead my core tries to contact the UA directly. 
>  fix_natted_contact() and fix_natted_registrar() just aren't doing the 
> job.
>
> Is there a way to force OpenSIPS to always change the contact HF 
> before relaying the REGISTER request so subsequent INVITEs flow 
> through the system?
>
> Thanks.
>
> -Daniel
>
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