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@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@vivaction.com

Immeuble Plein Ouest 177 av. Georges Clemenceau 92024 Nanterre - France Tel : 0 811 02 6000 www.vivaction.com

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