I have established a server with SER on the Internat with the IP:194.165.196.72,And we also have our own hardware phone developed. I am using MySQL and the nathelper modules & RTPproxy with NAT,but I run accross 2 problems with the digest authenticaiton:

1,Some UA cann't log on the server: I tested K-phone,X-Lite,WM5 and our own hardware phone,but with the digest authentication mode only the K-phone and X-lite can log in ,our own hardware phone and WM5 cann't register on it. The K-phone log on it with challenge form and password,fill in the password then log on.but the WM5 even haven't the challenge form to fill in the password.our own hardware phone also cann't log on the server.

2,Also the WM log in status problem: Under non-digest authentication mode,the WM can log on but while 2 WM log on it only can see one is online.

3,Our own hardware phone problem: Our own phone supports SIP/MGCP/H.323/Net2phoen protocals ,like Cisco ATA and 7960 products and have more features.But Also under non-digest authentication mode,It can regist and log on normally but while make a call behind NAT with RTPs,between X-lite,cann't hear the voice on the PC,but all can speak on the hardware phoen while X-LITE call to the phone.When Phone call to X-lite,it just the same,cann't hear anythink on the PC but other works normally.(Two UAs are all behind NAT).

My x-lite number is 8888,If I am online it is also online.Please use WM and other UA have a try and let me know how to solve.

#
# $Id: ser.cfg,v 1.21.2.1 2003/07/30 16:46:18 andrei Exp $
#
# simple quick-start config script
#

#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"
listen=194.165.196.72
listen=127.0.0.1
alias=194.165.196.72
alias=podiumvision.com

# Uncomment this if you want to use SQL database
loadmodule "/usr/lib/ser/modules/tm.so"
loadmodule "/usr/lib/ser/modules/sl.so"
loadmodule "/usr/lib/ser/modules/acc.so"
loadmodule "/usr/lib/ser/modules/rr.so"
loadmodule "/usr/lib/ser/modules/maxfwd.so"
loadmodule "/usr/lib/ser/modules/mysql.so"
loadmodule "/usr/lib/ser/modules/usrloc.so"
loadmodule "/usr/lib/ser/modules/registrar.so"
loadmodule "/usr/lib/ser/modules/auth.so"
loadmodule "/usr/lib/ser/modules/auth_db.so"
loadmodule "/usr/lib/ser/modules/textops.so"
loadmodule "/usr/lib/ser/modules/uri.so"
loadmodule "/usr/lib/ser/modules/group.so"
loadmodule "/usr/lib/ser/modules/msilo.so"
loadmodule "/usr/lib/ser/modules/nathelper.so"
loadmodule "/usr/lib/ser/modules/enum.so"
loadmodule "/usr/lib/ser/modules/domain.so"
# ----------------- setting module-specific parameters ---------------
# ------------- tm parameters

modparam("tm", "fr_timer", 12)
modparam("tm", "fr_inv_timer", 24)
# ------------- accounting parameters

modparam("acc", "log_missed_flag", 3)
modparam("acc", "log_level", 1)
modparam("acc", "log_flag", 1)

# Uncomment this if you want to use SQL database
# for persistent storage and comment the previous line
modparam("usrloc", "db_mode", 2)
modparam("auth_db", "password_column", "password")
#modparam("usrloc|auth_db|group|msilo", "db_url", "sql://ser:heslo@localhost/ser")
# -- 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)
# -- rr params --
# add value to ;lr param to make some broken UAs happy
modparam("rr", "enable_full_lr", 1)

#modparam("registrar", "nat_flag", 6)
modparam("nathelper", "natping_interval", 30) # Ping interval 30 s
#modparam("nathelper", "ping_nated_only", 1) # Ping only clients behind NAT

# 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;
};
# !! Nathelper
# Special handling for NATed clients; first, NAT test is
# executed: it looks for via!=received and RFC1918 addresses
# in Contact (may fail if line-folding is used); also,
# the received test should, if completed, should check all
# vias for rpesence of received

  # Allow RR-ed requests, as these may indicate that
  # a NAT-enabled proxy takes care of it; unless it is
  # a REGISTER

# 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()) {
  append_hf("P-hint: rr-enforced\r\n");
  #route(1);
  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" ) {
               #         save("location");
# Uncomment this if you want to use digest authentication
   if (!www_authorize("194.165.196.72", "subscriber")) {
    www_challenge("194.165.196.72", "1");
    break;
   };

                    log("LOG: Someone trying to register from private IP, rewriting\n");
                    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

          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();
};

Podium Vision Ltd (Shanghai,China Branch)

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