[Serusers] Problem with forwarding to a PSTN-Gateway :-(
Dirk Willbrandt
dw at terralink.de
Fri Apr 1 10:11:59 CEST 2005
Nobody can help me ?
Or nobody wants to help me ? ;-)
I've made one change yesterday.
I've configured the MediaProxy for me and deactivated the RTPProxy.
The Calls between VoIP-and-VoIP go correctly...
It is just the Problem with the PSTN-Gateway :-(
Thanks
Dirk
Dirk Willbrandt wrote:
> Hi all...
>
> now i have the following scenario:
>
> I want to forward calls with an 8 as prefix to a PSTN Gateway but
> when i place a call to i.e. 8004912345678 i get a busy-tone on my
> VoIP Phone and the call gets canceled.
>
> My ser.cfg is configured out, so that i can say "theoretly it have to
> do" :-)
>
> I've installed a RTPProxy too. I've took the rtpproxy from ser-cvs.
>
> The connection between ser and rtp is ethablished when i start the ser.
>
> On the PSTN-Gateway i can see, when i place a call, that a request comes
> to the Gateway but it isn't the IP-Address of my ser but the
> IP-Address of my VoIP Phone
> and this IP-Address isn't allowed to connect to the PSTN-Gateway.
>
> Also, when i reconfigure the PSTN-Gateway so that the Phone-IP-Address
> is allowed to connect
> then i get a busy-tone on my phone, but the PSTN Phone rings. When i
> took the PSTN-Phone i hear
> nothing and my VoIP-Phone doesn't ring again.
>
> Can anyone help me ? :-(
> I become crazy with it - i work now 2 weeks on this Problem :-(
>
> Here is my ser.cfg for reference:
>
> ---
>
> #
> # $Id: ser.cfg,v 1.21.2.1 2003/07/30 16:46:18 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)
>
>
> # 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"
>
>
> alias="terralink.de" # myself=terralink.de
> alias="siiip.terralink.de" # myself=siiip.terralink.de
> alias="217.9.16.13" # myself
>
>
> # ------------------ 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_radius.so"
>
>
> #loadmodule "/usr/local/lib/ser/modules/acc.so"
>
>
> loadmodule "/usr/local/lib/ser/modules/nathelper.so"
>
>
> loadmodule "/usr/local/lib/ser/modules/xlog.so"
>
> # ----------------- setting module-specific parameters ---------------
>
> # -- usrloc params --
> modparam("usrloc", "db_url", "mysql://ser:ser@localhost/ser")
> #modparam("usrloc", "db_mode", 0)
> modparam("usrloc", "db_mode", 2)
>
>
> # -- auth params --
> #modparam("auth_db", "db_url", "sql://ser:ser@localhost/ser")
> #modparam("auth_db", "calculate_ha1", yes)
> #modparam("auth_db", "password_column", "password")
> modparam("auth_radius", "radius_config",
> "/usr/local/etc/radiusclient/radiusclient.conf")
>
> # -- rr params --
> modparam("rr", "enable_full_lr", 1)
>
> # -- acc params --
> #modparam("acc", "log_level", 1)
> #modparam("acc", "log_flag", 1 )
> #modparam("acc", "log_missed_flag", 3)
> #modparam("acc", "radius_config",
> "/usr/local/etc/radiusclient/radiusclient.conf")
> #modparam("acc", "radius_flag", 1)
> #modparam("acc", "radius_missed_flag", 3)
>
> # -- nat params --
> modparam("nathelper", "natping_interval", 10)
> modparam("nathelper","rtpproxy_sock", "/var/run/rtpproxy.sock")
>
> # ------------------------- request routing logic -------------------
>
> # main routing logic
>
> route{
> # zu viele Hops ?
> if (!mf_process_maxfwd_header("10")) {
> sl_send_reply("483","Too Many Hops");
> break;
> };
> # nachricht zu lang ?
> 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; };
>
> # labeled all transaction for accounting
> setflag(1);
>
> #if (!lookup("location")) {
> # # call invitations to off-line users are reported
> using the
> # # acc_request action; to avoid duplicate reports on
> request
> # # retransmissions, request is processed statefuly
> (t_newtran,
> # # t_reply)
> # if ((method=="INVITE" || method=="ACK") && t_newtran()
> ) {
> # t_reply("404", "Not Found");
> # #acc_request("404 Not Found");
> # break;
> # };
> # # all other requests to off-line users are simply replied
> # # statelessly and no reports are issued
> # #sl_send_reply("404", "Not Found");
> # #break;
> #} else {
> # # user on-line; report on failed transactions; mark the
> # # transaction for reporting using the same number as
> # # configured above; if the call is really missed, a
> report
> # # will be issued
> # setflag(3);
> # # forward to user's current destination
> # 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) {
> rewritehost("siiip.terralink.de");
> #xlog("L_DBG", "time [%Tf] method <%rm> r-uri <%ru>
> from <%fu> contact <%ct>\n");
> if (method=="REGISTER") { route(1); break; };
> if (method=="INVITE") {
> fix_nated_contact();
> record_route();
> force_rtp_proxy();
> if (uri=~"^sip:(.+)?@(.+)?") { route(3); break; }
> #else { break; };
> }
>
> lookup("aliases");
>
> # native SIP destinations are handled using our USRLOC DB
> if (!lookup("location")) {
> #if (!lookup("location") || !lookup("aliases")) {
> 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();
> };
> }
>
> route[1] {
> #xlog("L_DBG", "Hier registriert sich jemand !\n");
> if (!radius_www_authorize("")) {
> www_challenge("", "0");
> break;
> };
> save("location");
> break;
> }
>
> #route[2] {
> #xlog("L_DBG", "Hier will jemand intern telefonieren !\n");
> #}
>
> route[3] {
> #xlog("L_DBG", "Hier will jemand extern telefonieren !\n");
> #strip(1);
> #rewritehostport("217.9.16.13:5060");
> rewritehostport("217.9.21.6:5060");
> #forward( 217.9.16.11, 5060 );
> append_branch("sip:sip at 217.9.16.13");
> #t_relay_to_udp("217.9.21.6", "5060");
> if (!t_relay_to_udp("217.9.21.6", "5060")) {
> sl_reply_error();
> break;
> };
> }
>
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