----- Original Message -----
From: support
To: Jefrey ; serusers@lists.iptel.org
Sent: Friday, February 25, 2005 3:46 PM
Subject: Re: [Serusers] ser-0.8.14 / ser-0.9 + rtpproxy + PSTN

Hi,
 
Yes, this configuration allow SIP clients to call each other.
 
This is the updated config.
 
 
Thomas
 
#
# $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=3         # debug level (cmd line: -dddddddddd)
fork=yes
log_stderror=no # (cmd line: -E)
 
check_via=no # (cmd. line: -v)
dns=no           # (cmd. line: -r)
rev_dns=no      # (cmd. line: -R)
 
listen=""
port=5060
children=4
fifo_mode=0666
fifo="/tmp/ser_fifo"
 
# ------------------ module loading ----------------------------------
 
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"
loadmodule "/usr/local/lib/ser/modules/textops.so"
loadmodule "/usr/local/lib/ser/modules/auth.so"
loadmodule "/usr/local/lib/ser/modules/auth_db.so"
loadmodule "/usr/local/lib/ser/modules/nathelper.so"
 
# ----------------- setting module-specific parameters ---------------
 
# -- usrloc params --
 
# 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)
 
# -- Nathelper params --
modparam("registrar", "nat_flag", 6)
modparam("nathelper", "natping_interval", 30)  # Ping interval
modparam("nathelper", "ping_nated_only", 1) # Ping only clients behind NAT
 
# -------------------------  request routing logic -------------------
 
# main routing logic
 
route{
 
# -----------------------------------------------
# Sanity Check Section
# -----------------------------------------------
 # 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;
 };
 
# -----------------------------------------------
# NOTIFY Keep-Alive Section
# -----------------------------------------------
 if ((method=="NOTIFY") && search("^Event: keep-alive")) {
          sl_send_reply("200","OK");
          break;
        };
 
 # Nathelper
 if (nat_uac_test("3")) {
  # Allow RR-ed requests, as these may indicate that
  # a NAT-enabled proxy takes care of it; unless it is
  # a REGISTER
  
  if (method == "REGISTER" || ! search("^Record-Route:")) {
      fix_nated_contact(); # Rewrite contact with source IP of signalling
      if (method == "INVITE") {
          fix_nated_sdp("1"); # Add direction=active to SDP
      };
      force_rport(); # Add rport parameter to topmost Via
      setflag(6);    # Mark as NATed
  };
 };
 
 # 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("", "subscriber")) {
    www_challenge("", "0");
    break;
   };
 
   save("location");
   break;
  };
 
  # if the dialed number lies in the range 35891500-35891799, don't forward it to T1 Trunk GW 
  if ((uri=~"^sip:(852|)358915[0-9][0-9]@") || (uri=~"^sip:(852|)358916[0-9][0-9]@") || (uri=~"^sip:(852|)358917[0-9][0-9]@")) {
   if (uri=~"^sip:852*") {
    strip(3);
   };
  };
  
  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
  # Call Routing Section
  if (!lookup("location")) {
   if (uri=~"^sip:(852|)[0-9]{8}@") {
    # Send to PSTN Gateway
    route(2);
    break;
   };
   sl_send_reply("404", "User Not Found");
   break;
  };
 };
 append_hf("P-hint: usrloc applied\r\n");
 route(1);
 
}
 
route[1]
{
 # Nathelper
 if (uri=~"[@:](192\.168\.|10\.|172\.(1[6-9]|2[0-9]|3[0-1])\.)" && !search("^Route:")){
     sl_send_reply("479", "We don't forward to private IP addresses");
     break;
        };
 
 # if client or server know to be behind a NAT, enable relay
 if (isflagset(6)) {
     force_rtp_proxy();
 };
 
 # NAT processing of replies; apply to all transactions (for example,
 # re-INVITEs from public to private UA are hard to identify as
 # NATed at the moment of request processing); look at replies
 t_on_reply("1");
 
 
 # send it out now; use stateful forwarding as it works reliably
 # even for UDP2TCP
 if (!t_relay()) {
  sl_reply_error();
  break;
 };
}
 
# PSTN Call to T1 Trunk GW
route[2] {
 rewritehostport("");
 if (isflagset(6)) {
  force_rtp_proxy();
 };
 t_on_reply("1");
 if (!t_relay()) {
  sl_reply_error();
  break;
 };
}
 
# !! Nathelper
onreply_route[1] {
    # NATed transaction ?
    if (isflagset(6) && status =~ "(183)|2[0-9][0-9]") {
        fix_nated_contact();
 
 # Not all 2xx messages have a content body so here we make sure
 # out Content-Length > 0 to avoid a parse error
 if (!search("^Content-Length:\0")) {
  force_rtp_proxy();
        };
    # otherwise, is it a transaction behind a NAT and we did not
    # know at time of request processing ? (RFC1918 contacts)
    } else if (nat_uac_test("1")) {
        fix_nated_contact();
    };
}
---------end of config -----------