[Serusers] SER 0.8.14 + MEDIAPROXY: 2 UA BEHIND the same NAT : no sound

[Rafael J. Risco G.V.]

hi Nicolas
I have the same problem here, jimmy and Java Rockx they sent me some
advice last week but I cant try yet...
----->
Hi Rafael:
It seems has two way to meet your requirement
(1)use external script
http://lists.iptel.org/pipermail/serusers/2005-February/015477.html
(2)use avpops module
http://www.voice-system.ro/docs/avpops/
Hope it's useful ...

Jimmy

....
This should do the trick. This code uses AVPOPS to determine if the
source and destination IP addresses are the same.

       avp_write("$ruri/domain", "i:33");
       if (avp_check("i:33", "eq/$src_ip/i")) {
               # RTP proxy is not needed because caller
               # and caller are behind the same NAT
               # so set a flag or something to indicate that
               # mediaproxy/rtpproxy are not needed
       };
       avp_delete("i:33");



On Mon, 21 Mar 2005 12:19:52 +0100, Nicolas Ruiz <nruiz at vivaction.com> wrote:
> HI,
>  
> I have installed SER 0.8.14 + MEDIAPROXY : when I make a call with 2 UA on
> different NAT, it's good.
>  
> But, when the UAs are behind the same NAT, there are no sound. The RTP
> packets go to the MEDIAPROXY but NO SOUND.
>  
> Does someone know how to solve this problem???
>  
> Best Regards
>  
> NICOLAS RUIZ
>  
> Thats my conf :
>  
>     if (method=="REGISTER") {
>             # Mark as NAT'ed
>             if (client_nat_test("3")) {
>                 setflag(2);
>                 force_rport();
>                 fix_contact();
>             };
>  
>             if (!www_authorize("sip.vivaction.net", "subscriber")) {
>                 www_challenge("sip.vivaction.net", "0");
>                 break;
>             } else if (!check_to()) {
>                 sl_send_reply("403", "Username!=To not allowed");
>                 break;
>             };
>  
>             if (!save("location")) {
>                 sl_reply_error();  
>             };
>         
>  
>         break;
>     };
>  
>     if (method == "BYE" || method == "CANCEL") {
>         end_media_session();
>     };
>  
>     if (loose_route()) { 
>         if (method=="INVITE" || method=="ACK") {
>             use_media_proxy();
>         };
>         # end media session for BYE and CANCEL is done above
>         # before entering the loose route. no need to call it here
>         t_relay();
>         break;
>     };
>  
>     # Force subsequent messages to pass trough this proxy
>     if (method == "INVITE") {
>         record_route();
>     };
>  
>     if (client_nat_test("3") && !search("^Record-Route:")) {
>         # Mark as NAT'ed
>         force_rport();
>         fix_contact();
>     };
>  
>     if (method=="INVITE") {
>             t_on_reply("1");
>     };
>  
>     if (is_uri_host_local()) {
>         if (!lookup("location")) {
>             sl_send_reply("404", "User not found");
>             break;
>         };
>     };
>  
>     if (method=="INVITE" || method=="ACK") {
>         use_media_proxy();
>     };
>  
>     if (!t_relay()) {
>         if (method=="INVITE" || method=="ACK") {
>             end_media_session();
>         };
>         sl_reply_error();
>     };
> }
>  
> failure_route[1] {
>     end_media_session();
> }
>  
> onreply_route[1] {
>  if (status=~"(183)|(2[0-9][0-9])") {
>         if (client_nat_test("1")) {
>             fix_contact();
>         };
>         use_media_proxy();
>     };
> }
> 
> 
> 
> Vos Solutions Voix-Data !
> 
> 
> Nicolas Ruiz
> Service Technique
> Ligne directe : + 33 (0) 1 56 38 39 71
> Fax :+ 33 (0) 1 47 24 74 77
> nruiz at vivaction.com 
> 
> Immeuble Plein Ouest
> 177 av. Georges Clemenceau
> 92024 Nanterre - France
> Tel : 0 811 02 6000
> www.vivaction.com
> 
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rrgv