1. install mediaproxy module
2. install mediaproxy dispacter
3. install mediaproxy server

#
 
# ----------- global configuration parameters ------------------------
 
#debug=3         # debug level (cmd line: -dddddddddd)
 
#fork=yes
 
#log_stderror=no        # (cmd line: -E)
 
#log_facility=LOG_LOCAL0
 
/* Uncomment these lines to enter debugging mode
 
fork=no
 
log_stderror=yes
 
*/
 
check_via=no    # (cmd. line: -v)
 
dns=no           # (cmd. line: -r)
 
rev_dns=no      # (cmd. line: -R)
 
#port=5060
 
#children=4
 
fifo="/tmp/openser_fifo"
 
# ------------------ module loading ----------------------------------
 
# Uncomment this if you want to use SQL database
 
loadmodule "/usr/local/openser/lib/openser/modules/mysql.so"
 
loadmodule "/usr/local/openser/lib/openser/modules/domain.so"
 
loadmodule "/usr/local/openser/lib/openser/modules/mediaproxy.so"
 
loadmodule "/usr/local/openser/lib/openser/modules/uri_db.so"
 
loadmodule "/usr/local/openser/lib/openser/modules/sl.so"
 
loadmodule "/usr/local/openser/lib/openser/modules/tm.so"
 
loadmodule "/usr/local/openser/lib/openser/modules/rr.so"
 
loadmodule "/usr/local/openser/lib/openser/modules/maxfwd.so"
 
loadmodule "/usr/local/openser/lib/openser/modules/usrloc.so"
 
loadmodule "/usr/local/openser/lib/openser/modules/registrar.so"
 
loadmodule "/usr/local/openser/lib/openser/modules/textops.so"
 
# Uncomment this if you want digest authentication
 
# mysql.so must be loaded !
 
loadmodule "/usr/local/openser/lib/openser/modules/auth.so"
 
loadmodule "/usr/local/openser/lib/openser/modules/auth_db.so"
 
# ----------------- setting module-specific parameters ---------------
 
# -- usrloc params --
 
modparam("usrloc", "db_mode",   0)
 
# Uncomment this if you want to use SQL database
 
# for persistent storage and comment the previous line
 
modparam("usrloc", "db_mode", 2)
 
# -- auth params --
 
# Uncomment if you are using auth module
 
#
 
modparam("auth_db", "calculate_ha1", yes)
 
#
 
# If you set "calculate_ha1" parameter to yes (which true in this config),
 
# uncomment also the following parameter)
 
#
 
modparam("auth_db", "password_column", "password")
 
# -- rr params --
 
# add value to ;lr param to make some broken UAs happy
 
modparam("rr", "enable_full_lr", 1)
 
modparam("mediaproxy", "natping_interval", 60)
 
modparam("registrar",  "nat_flag",         2)
 
# -------------------------  request routing logic -------------------
 
# main routing logic
 
route{
 
        # initial sanity checks -- messages with
        # max_forwards==0, or excessively long requests
        if (!mf_process_maxfwd_header("10")) {
                sl_send_reply("483","Too Many Hops");
                break;
        };
        if (msg:len >=  2048 ) {
                sl_send_reply("513", "Message too big");
                break;
        };
 
 
        # we record-route all messages -- to make sure that
        # subsequent messages will go through our proxy; that's
        # particularly good if upstream and downstream entities
        # use different transport protocol
        if (!method=="REGISTER") record_route();
 
        # subsequent messages withing a dialog should take the
        # path determined by record-routing
        if (loose_route()) {
                # mark routing logic in request
                append_hf("P-hint: rr-enforced\r\n");
                route(1);
                break;
        };
 
        if (!uri==myself) {
                # mark routing logic in request
                append_hf("P-hint: outbound\r\n");
                route(1);
                break;
        };
 
        # if the request is for other domain use UsrLoc
        # (in case, it does not work, use the following command
        # with proper names and addresses in it)
        if (uri==myself) {
 
                if (method=="REGISTER") {
                       # Uncomment this if you want to use digest authentication
                       if (!www_authorize("sip.com", "subscriber")) {
                               www_challenge("sip.com", "0");
                               break;
                       };
 
            if (client_nat_test("3")) {
                setflag(2);
                force_rport();
                fix_contact();
            };
 
                        save("location");
                        break;
 
                };
 
                lookup("aliases");
                if (!uri==myself) {
                        append_hf("P-hint: outbound alias\r\n");
                        route(1);
                        break;
                };
 
                # native SIP destinations are handled using our USRLOC DB
                if (!lookup("location")) {
                        sl_send_reply("404", "Not Found");
                        break;
                };
        };
 
    if (method=="INVITE") {
        t_on_failure("1");
    } else if (method == "BYE" || method == "CANCEL") {
        end_media_session();
    };
 
    if (loose_route()) {
        if (method=="INVITE" || method=="ACK") {
            use_media_proxy();
        };
        t_relay();
        break;
    };
 
    if (client_nat_test("3") && !search("^Record-Route:")) {
        # Mark as NAT'ed
        force_rport();
        fix_contact();
    };
 
    if (method=="INVITE") {
        t_on_reply("1");
    };
 
    if (method=="INVITE" || method=="ACK") {
        use_media_proxy();
    };
 
    if (!t_relay()) {
        if (method=="INVITE" || method=="ACK") {
            end_media_session();
        };
        sl_reply_error();
    };
 
        append_hf("P-hint: usrloc applied\r\n");
        # route(1);
 
}
 
route[1]
{
        # send it out now; use stateful forwarding as it works reliably
        # even for UDP2TCP
        if (!t_relay()) {
                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();
    };
}