[OpenSIPS-Users] fix_nated_sdp

[Alex Balashov]

fix_nated_sdp() operates on any request or reply containing an SDP payload.

If you wish to apply it to a 200 OK with SDP payload, you need to call 
it from a reply route that catches 200 OKs;  200 OKs are replies, not 
requests.  For example:

route {
    ...

    # Relay INVITE.

    t_on_reply("1");

    if(!t_relay())
       sl_reply_error();

    exit;
}

onreply_route[1] {
    if(t_check_status("200")) {
       if(nat_uac_test("8") && search("Content-type: application/sdp")) {
          fix_nated_sdp("2");
       }
    }
}

Anil M Pannikode (hotmail) wrote:

> Does fix_nated_sdp("2") function only works on SIP INVITE ?
> 
>  
> 
> I am trying to rewrite the media IP and looks like it is working only 
> for SIP INVITE. (Not for any subsequent messages like 200 OK)
> 
>  
> 
> In my case I get an invite from an external client and my server 
> re-invites for T.38. The client responds with 200 OK and I want to 
> rewrite the media IP address. (Since the client is currently passing an 
> internal ip for media IP)
> 
>  
> 
>  
> 
> Anil
> 
>  
> 
>  
> 
> 
> ------------------------------------------------------------------------
> 
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-- 
Alex Balashov
Evariste Systems
Web    : http://www.evaristesys.com/
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