Hi Ozan,

If I get it right, all incoming calls having URI different than 833xxxx or 834xxxx to be routed to a gateway. To do so, add in the "if uri==myself" block, just before lookup("location") line the following block: if ( !(uri=~"sip:(833)|(834)") ) { t_relay_to_udp("212.XXX.32.YYY","5060"); break; }

Don't worry, the media traffic will not go through your SER.

Best regards, Marian

Ozan Blotter wrote:

i've checked so many examples and read but not yet find any clear one with real examples for routing calls to another sip server.

config as follow: UA 1 : NAT : ROUTER A > INTERNET (SIP SER) INTERNET < ROUTER B : NAT : UA 2 (for now i'm testing on LAN but soon i'll place SER on a Public IP)

and there's another sipserver at 212.XXX.32.YYY which we use as gateway, it connects all calls to PSTN. It's capable of doing billing,radius auth,sybase etc, all in one solution.

i want to give users numbers like 833XXXXXXX (prepaid) and 834XXXXXXX (postpaid) i create users with dialupadmin, it registers, they can call each other there's no problem but when i try to add some prefix routing it does not register or call, i am not familiar with linux but can do some.

what i need is i want to route all calls except beginning with 833 or 834 prefix to be routed to 212.XXX.32.YYY and if possible not to use SER's bandwidth.

how can i ?

thanks

below is my ser.cfg

# # $Id: ser.cfg,v 1.21.4.1 2003/11/10 15:35:15 andrei Exp $ # # simple quick-start config script #

# ----------- global configuration parameters ------------------------

#debug=7 #debug=3 # debug level (cmd line: -dddddddddd) #fork=yes #log_stderror=no # (cmd line: -E)

/* Uncomment these lines to enter debugging mode debug=7 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/ser_fifo"

# ------------------ module loading ----------------------------------

# Uncomment this if you want to use SQL database #loadmodule "/usr/local/lib/ser/modules/mysql.so"

loadmodule "/usr/local/lib/ser/modules/sl.so" loadmodule "/usr/local/lib/ser/modules/tm.so" loadmodule "/usr/local/lib/ser/modules/rr.so" loadmodule "/usr/local/lib/ser/modules/maxfwd.so" loadmodule "/usr/local/lib/ser/modules/usrloc.so" loadmodule "/usr/local/lib/ser/modules/registrar.so"

# Uncomment this if you want digest authentication # mysql.so must be loaded ! loadmodule "/usr/local/lib/ser/modules/auth.so" #loadmodule "/usr/local/lib/ser/modules/auth_db.so" loadmodule "/usr/local/lib/ser/modules/auth_radius.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)

# ------------------------- 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 > max_len ) {
            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
    record_route();

    # loose-route processing
    if (loose_route()) {
            t_relay();
            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("", "subscriber")) { # www_challenge("", "0"); # break; # };

                    if (!radius_www_authorize("")) {
                            www_challenge("", "0");
	break;
                    };

                    save("location");
                    break;
            };

            # native SIP destinations are handled using our USRLOC DB
            if (!lookup("location")) {
                    sl_send_reply("404", "Not Found");
                    break;
            };
    };
    # forward to current uri now; use stateful forwarding; that
    # works reliably even if we forward from TCP to UDP
    if (!t_relay()) {
            sl_reply_error();
    };

}