[Users] MediaProxy Related (argh my email client) - sr-users

10 Aug 2005


      Dear List, This is a big explanation with enough information except 
ngrep/ethereal captures, in both cases : ADSL Connection Speed : 512/128, 
ATA's : Zyxel P2002,Codec : G729,RTP Port Range : 19000-20000, and OpenSER 
on Public IP without NAT etc. I think i should change the ser.cfg to use 
MediaProxy just for SIP2SIP calls not for PSTN calls and i do not know how 
to do it, any clues ? Thanks,Ozan * A Side client use Zoom 4X, port 
forwarding to ATA in modem setting i register as port:5060 (openserctl ul 
show),* B Side client use Zyxel 660R, port forwarding to ATA in modem 
setting and register as port:10XXX (openserctl ul show),* Make a call to 
other sip client it's okay voice quality is acceptable most of time, but 
caller or callee losts ADSL connection after 30-60 seconds,* From A Side 
(Zoom 4X), make a call to PSTN, ADSL crashes, everything locks up,* From B 
Side (Zyxel 660R), make a call to PSTN, everything is normal, connection 
never down. ps: If i change A Side client modem to Zyxel 660R too as B Side 
client, the problems are totaly same. here is my basic ser.cfg
...
...
...
debug=3fork=yeslog_stderror=nocheck_via=nolisten=212.XXX.104.XXX    #
OpenSER Server on Public IP
port=5060children=4dns=norev_dns=nofifo="/tmp/openser_fifo"loadmodule 
"/usr/local/lib/openser/modules/sl.so"loadmodule 
"/usr/local/lib/openser/modules/tm.so"loadmodule 
"/usr/local/lib/openser/modules/rr.so"loadmodule 
"/usr/local/lib/openser/modules/maxfwd.so"loadmodule 
"/usr/local/lib/openser/modules/usrloc.so"loadmodule 
"/usr/local/lib/openser/modules/registrar.so"modparam("usrloc", "db_mode", 
0)modparam("rr", "enable_full_lr", 1)route {        if 
(!mf_process_maxfwd_header("10")) {                sl_send_reply("483", "Too 
Many Hops");                break;        };        if (msg:len > max_len) 
{                sl_send_reply("513", "Message Overflow"); 
break;        };        if (method!="REGISTER") { 
record_route();        };        if (loose_route()) { 
route(1);                break;        };        if (uri!=myself) 
{                route(1);                break;        };        if 
(uri==myself) {                if (method=="REGISTER") 
{                        route(2); 
        break;                };                lookup("aliases"); 
if (uri!=myself) {                        route(1); 
break;                };                if (uri=~"^sip:0[0-9]*@*") 
{                    rewritehost("195.XXX.122.XXX");    # PSTN Gateway on 
Public IP
                    route(1); 
         break;                };                if (!lookup("location")) 
{                        sl_send_reply("404", "User Not Found"); 
break;                };                route(1);        };}route[1] 
{        if (!t_relay()) {            sl_reply_error();        };}route[2] 
{        if (!save("location")) { 
        sl_reply_error();        };}In my advanced SER.CFG ;* A Side client 
use Zoom 4X, port forwarding to ATA in modem setting i register as 
port:1XXXX (openserctl ul show),* B Side client use Zyxel 660R, port 
forwarding to ATA in modem setting and register as port:1XXXX (openserctl ul 
show),* Make a call to other sip client it's okay voice quality is worse 
then first case most of time, connection never down,* From A Side (Zoom 4X), 
make a call to PSTN, everything is normal, connection never down,* From B 
Side (Zyxel 660R), make a call to PSTN, everything is normal, connection 
never down. ps : If i change both A Side client and B Side client modems not 
to do port forwarding, problems are totaly same. here is my advanced ser.cfg
...
...
...
debug=3
fork=yes
log_stderror=no
listen=212.XXX.104.XXX    # OpenSER Server on Public IP
port=5060
children=4
alias=212.XXX.104.XXX    # OpenSER Server on Public IP
dns=no
rev_dns=no
fifo="/tmp/openser_fifo"
fifo_db_url="mysql://openser:openserrw@localhost/openser"
loadmodule "/usr/local/lib/openser/modules/mysql.so"
loadmodule "/usr/local/lib/openser/modules/sl.so"
loadmodule "/usr/local/lib/openser/modules/tm.so"
loadmodule "/usr/local/lib/openser/modules/rr.so"
loadmodule "/usr/local/lib/openser/modules/maxfwd.so"
loadmodule "/usr/local/lib/openser/modules/usrloc.so"
loadmodule "/usr/local/lib/openser/modules/registrar.so"
loadmodule "/usr/local/lib/openser/modules/auth.so"
loadmodule "/usr/local/lib/openser/modules/auth_db.so"
loadmodule "/usr/local/lib/openser/modules/uri.so"
loadmodule "/usr/local/lib/openser/modules/uri_db.so"
loadmodule "/usr/local/lib/openser/modules/mediaproxy.so"
loadmodule "/usr/local/lib/openser/modules/nathelper.so"
loadmodule "/usr/local/lib/openser/modules/textops.so"
loadmodule "/usr/local/lib/openser/modules/domain.so"
loadmodule "/usr/local/lib/openser/modules/acc.so"
modparam("auth_db", "calculate_ha1", 1)
modparam("auth_db", "password_column", "password")
modparam("auth_db", "use_domain", 1)
modparam("domain", "db_mode", 1)
modparam("nathelper", "rtpproxy_disable", 1)
modparam("nathelper", "natping_interval", 180)
modparam("mediaproxy","natping_interval", 30)
modparam("mediaproxy","mediaproxy_socket", "/var/run/mediaproxy.sock")
modparam("mediaproxy","sip_asymmetrics","/usr/local/etc/openser/sip-asymmetric-clients")
modparam("mediaproxy","rtp_asymmetrics","/usr/local/etc/openser/rtp-asymmetric-clients")
modparam("usrloc", "db_mode", 2)
modparam("usrloc", "use_domain", 1)
modparam("registrar", "default_expires", 60)
modparam("registrar", "min_expires", 30)
modparam("registrar", "nat_flag", 6)
modparam("registrar", "use_domain", 1)
modparam("rr", "enable_full_lr", 1)
modparam("acc", "db_url", "mysql://openser:openserrw@localhost/openser")
modparam("acc", "failed_transactions", 1)
modparam("acc", "log_level", 1)
modparam("acc", "log_flag", 1)
modparam("acc", "db_flag", 1)
route {
# -----------------------------------------------------------------
        # Sanity Check Section
        # -----------------------------------------------------------------
        if (!mf_process_maxfwd_header("10")) {
                sl_send_reply("483", "Too Many Hops");
                break;
        };
if (msg:len > max_len) {
                sl_send_reply("513", "Message Overflow");
                break;
        };
# -----------------------------------------------------------------
        # Record Route Section and Acc section
        # -----------------------------------------------------------------
        if (method=="INVITE" && client_nat_test("3")) {
                record_route_preset("212.XXX.104.XXX:5060;nat=yes");
        } else if (method!="REGISTER") {
    if!(uri=~"^sip:833[0-9]*@") {
                record_route();
    	setflag(1);
    	    }
    };
# -----------------------------------------------------------------
        # Call Tear Down Section
        # -----------------------------------------------------------------
        if (method=="BYE" || method=="CANCEL") {
                end_media_session();
        };
# -----------------------------------------------------------------
        # Loose Route Section
        # -----------------------------------------------------------------
        if (loose_route()) {
if (has_totag() && (method=="INVITE" || method=="ACK")) {
if (client_nat_test("3") || 
search("^Route:.*;nat=yes")) {
                                setflag(6);
                                use_media_proxy();
                        };
                };
route(1);
                break;
        };
# -----------------------------------------------------------------
        # Call Type Processing Section
        # -----------------------------------------------------------------
if (uri!=myself) {
                route(1);
                break;
        };
if (uri==myself) {
if (method=="CANCEL") {
                        route(3);
                        break;
                } else if (method=="INVITE") {
                        route(3);
                        break;
                } else  if (method=="REGISTER") {
                        route(2);
                        break;
                };
lookup("aliases");
                if (uri!=myself) {
                        route(1);
                        break;
                };
if (!lookup("location")) {
                        sl_send_reply("404", "User Not Found");
                        break;
                };
        };
route(1);
}
route[1] {
# -----------------------------------------------------------------
        # Default Message Handler
        # -----------------------------------------------------------------
t_on_reply("1");
if (!t_relay()) {
if (method=="INVITE" || method=="ACK") {
                        end_media_session();
                };
sl_reply_error();
        };
}
route[2] {
# -----------------------------------------------------------------
        # REGISTER Message Handler
        # ----------------------------------------------------------------
if (!search("^Contact:\ +*") && client_nat_test("7")) {
                setflag(6);
                fix_nated_register();
                force_rport();
        };
sl_send_reply("100", "Trying");        if (!www_authorize("","subscriber")) {
                www_challenge("","0");
                break;
        };
if (!check_to()) {
                sl_send_reply("401", "Unauthorized");
                break;
        };
consume_credentials();
if (!save("location")) {
                sl_reply_error();
        };
}
route[3] {
# -----------------------------------------------------------------
        # CANCEL and INVITE Message Handler
        # -----------------------------------------------------------------
if (client_nat_test("3")) {
                setflag(7);
                force_rport();
                fix_nated_contact();
        };
lookup("aliases");
        if (uri!=myself) {
                route(1);
                break;
        };
if (uri=~"^sip:0[0-9]*@*") {
    	     rewritehost("195.XXX.122.XXX");    # PSTN Gateway on Public IP
         route(1);
         break;
    };
if (!lookup("location")) {
                sl_send_reply("404", "User Not Found");
                break;
        };
if (method=="CANCEL") {
    	route(1);
    	break;
    };
if (!proxy_authorize("","subscriber")) {
                proxy_challenge("","0");
                break;
        } else if (!check_from()) {
                sl_send_reply("403", "Use From=ID");
                break;
        };
consume_credentials();
if (isflagset(6) || isflagset(7)) {
                use_media_proxy();
        };
route(1);
}
onreply_route[1] {
if ((isflagset(6) || isflagset(7)) && 
(status=~"(180)|(183)|2[0-9][0-9]")) {
if (!search("^Content-Length:\ +0")) {
                        use_media_proxy();
                };
        };
if (client_nat_test("1")) {
                fix_nated_contact();
        };
}