[Serusers] problem connecting two asterisk servers through SER

[Sameer Ahmed]

Hi
We have two asterisks registered as UA's. SER is acting as a proxy server.
We want to make calls between two asterisk users through SER. One asterisk
server has extensions starting with 2, and the other one has extensions
starting with 4. We route the calls based on the first digit. We are unable
to call from an extension on one asterisk server to the other asterisk
server. "rewritehostport" doesn't seem to be doing the trick for us. Does
anyone have a solution? Below is our ser.cfg file:


=====================SER.CFG=====================
#
# $Id: ser.cfg,v 1.25.2.1 2005/02/18 14:30:44 andrei Exp $
#
# simple quick-start config script
#

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

debug=9        # debug level (cmd line: -dddddddddd)
#fork=yes
#log_stderror=no # (cmd line: -E)

/* Uncomment these lines for debugging */
#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"
fifo_mode=0666
fifo_db_url="mysql://ser:heslo@192.168.1.60 /ser"

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

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

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

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

# -------------------------  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;
        };


        if(method == "INVITE") {
                if (uri =~ "sip:2[0-9]{3}@*"){
                        log(1, "Forwarding to PakVista BlueFlash\n");
                        route(2);
                        break;
                }
                else if (uri =~ "sip:4[0-9]{3}@*"){
                        log(1, "Forwarding to MyRoom BlueFlash\n");
                        route(3);
                        break;
                }
        }

        log(1, "After INVITE\n");

        # 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();

        log(1, "After REGISTER\n");

        # 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) {
                log(1,"Inside NOT uri==myself \n");
                # 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) {

                log(1, "Inside uri==myself\n");

                if (method=="REGISTER") {

# Uncomment this if you want to use digest authentication
                        if (!www_authorize("192.168.1.60", "subscriber")) {
                                www_challenge(" 192.168.1.60", "0");
                                break;
                        };

                        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")) {
                        log(1, "location Not Found\n");
                        sl_send_reply("404", "Not Found");
                        break;
                };
        };
        append_hf("P-hint: usrloc applied\r\n");
        route(1);
}

route[1]
{
        log(1, "Inside route 1\n");
        # send it out now; use stateful forwarding as it works reliably
        # even for UDP2TCP
        if (!t_relay()) {
                sl_reply_error();
        };
}

route[2]
{
        log(1, "Inside route 2\n");
        rewritehostport("192.168.1.61:5060");
        if (!t_relay()) {
                log(1, "t_relay error\n");
                sl_reply_error();
        };
        log(1, "Leaving route 2\n");

}

route[3]
{
        log(1, "Inside route 3\n");

        rewritehostport("192.168.1.62");
        if (!t_relay()) {
                log(1, "t_relay error\n");
                sl_reply_error();
        };
 #forward(uri:host, uri:port);

        log(1, "Leaving route 3\n");


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