[Serusers] nathelper/rtpproxy when both SIP UA are behind same NAT

[Jan Henkins]

Hello Rafael,

This is an issue I'm having at the moment as well, where two UA's are
behind the same nat. SIP obviously works fine, I can ring one UA from
the other (one UA a Grandstream Budgetone 100 and the other the X-Lite
softphone from Counterpath). Audio doesn't work. Did you get this
working with forcing rtpproxy?

On Fri, 2005-12-02 at 09:44 -0500, Rafael R. GV wrote:
> Hi
> I need to let the UAs speak directly to each other without force
> rtpproxy, Is there any solution for this issue?
> 
> rafael
> 
> 
> ---------- Forwarded message ----------
> From: Rafael J. Risco G.V. <rafael.risco at gmail.com>
> Date: Apr 22, 2005 2:17 PM
> Subject: UA´s behind same NAT using na thelper/rtpproxy, No Audio...
> To: serusers at lists.iptel.org
> 
> I am using avpops to enable SER to see if the UAs are located behind
> the same address and now I need to let the UAs speak directly to each
> other (without force rtpproxy), please someone see my configuration 
> below and send some advice.
> 
> rafael
> 
> ----.
>                if (!lookup("location")) {
>                        log(1,"unable to locate user \n");
>                        # handle user which was not found 
>                        route(4);
>                        break;
>                };
> 
>                ### Test if UAS are in the same NAT:
>                # get the host part of the final uri (IP part)
>                # and store it in AVP ID 13 
> 
>                avp_write("$ruri/domain", "i:13");
>                if (avp_check("i:13","eq/$src_ip/i")) {
>                        log(1, "source IP is the same as destination IP
> \n"); 
>                        route(3);
>                        break;
>                };
>                avp_delete("i:13/g");
> .
> .
> # -------------- Same NAT Call Routing (no force rtpproxy) ----
> 
> route[3]{
>        log(1," route[3]: UAs are in the same nat, NO force_rtp_proxy
> ");
> 
> ### Do something!!!!
> 
>        if(!t_relay()){
>                sl_reply_error();
>        };
> }
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-- 
Regards,
Jan Henkins
Cell: +27-84-951-4334