[Serusers] PSTN
Nicky
nicky at caliber.com.sg
Tue Nov 30 14:43:16 CET 2004
Hi Geger,
Thank you for your reply. My rtpproxy is not behind NAT. how can I make the
c=IP4 not to be rewritten by the nathelper?
I do my rtpproxy commands like this :~ rtpproxy -2fv -l public_ip
public_ip....is this correct?
Regards,
Nicky
----- Original Message -----
From: "Greger V. Teigre" <greger at teigre.com>
To: "Nicky" <nicky at caliber.com.sg>; "Kapil Dhawan" <sersavvy at hotmail.com>;
<zeus.ng at isquare.com.au>
Cc: <serusers at lists.iptel.org>
Sent: Tuesday, November 30, 2004 8:40 PM
Subject: Re: [Serusers] PSTN
> Nicky,
> You have your rtp proxy behind a NAT? If so, no wonders you have problems
> making the RTP streams flow.
> The IP address in the c=IP4 is rewritten by nathelper, but it is
> received from the rtpproxy. I attach a small patch that adds -i parameter
> to rtpproxy where you can define your public IP address of rtpproxy:
> rtpproxy -l internal_address -i public_ip.
> It is against the cvs version at
> http://cvs.berlios.de/cgi-bin/viewcvs.cgi/ser/rtpproxy/
>
> Hope it helps,
> Greger
>
> Nicky wrote:
> > Hi ,
> >
> > i am facing the same problem, can advice where you add the
> > t_on_reply("1") to make the PSTN have audio.
> > I have another problem I want to send public address instead of NAT
> > address in the c=IP4 function in the SDP message, anyone done this
> > before, i am a newbie I am problem in trying to code it. Please help.
> > Thanks in advance.....
> >
> > Regards,
> > nicky
> > ----- Original Message -----
> > From: "Kapil Dhawan" <sersavvy at hotmail.com>
> > To: <zeus.ng at isquare.com.au>
> > Cc: <serusers at lists.iptel.org>
> > Sent: Wednesday, June 02, 2004 12:19 PM
> > Subject: RE: [Serusers] PSTN
> >
> >
> > exactly...you are right...i was skipping it somehow and now working
> > ok....
> >
> >
> >> From: "Zeus Ng" <zeus.ng at isquare.com.au>
> >> To: "Kapil Dhawan" <sersavvy at hotmail.com>
> >> CC: serusers at lists.iptel.org
> >> Subject: RE: [Serusers] PSTN
> >> Date: Wed, 2 Jun 2004 11:42:07 +1000 (EST)
> >>
> >> You should do the t_on_reply("1") for PSTN call as well. I hope the
> >> other thread you mentioned about solving the problem is what I said
> >> here.
> >>
> >> Zeus
> >>
> >>> Hi List
> >>>
> >>> I am still unable to solve this issue why the my NAT user is unable
> >>> to hear
> >>> when he makes a PSTn call..
> >>>
> >>> # ----------- global configuration parameters
> >>> ------------------------
> >>>
> >>> debug=8 # debug level (cmd line: -dddddddddd)
> >>> fork=yes
> >>> log_stderror=yes # (cmd line: -E)
> >>>
> >>> 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"
> >>> loadmodule "/usr/local/lib/ser/modules/textops.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"
> >>>
> >>> # !! Nathelper
> >>> loadmodule "/usr/local/lib/ser/modules/nathelper.so"
> >>>
> >>> # !! Accounting
> >>> loadmodule "/usr/local/lib/ser/modules/acc.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)
> >>>
> >>> # !! Nathelper
> >>> # -- nathelper params --
> >>> 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
> >>>
> >>> # !! Accounting
> >>> # -- acc params --
> >>> # set the reporting log level
> >>> modparam("acc", "log_level", 2) # Set log_level to 2
> >>> # number of flag, which will be used for accounting; if a message is
> >>> # labeled with this flag, its completion status will be reported
> >>> modparam("acc", "log_flag", 1 )
> >>> modparam("acc", "log_missed_flag", 2)
> >>> modparam("acc", "failed_transactions", 1)
> >>> modparam("acc", "report_cancels", 1)
> >>> modparam("acc", "db_url", "mysql://ser:heslo@localhost/ser")
> >>> modparam("acc", "db_flag", 1)
> >>> modparam("acc", "db_missed_flag", 2)
> >>>
> >>> # ------------------------- 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;
> >>> };
> >>>
> >>> # !! 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
> >>> 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:")) {
> >>> log("LOG: Someone trying to register from private IP,
> >>> rewriting\n");
> >>>
> >>> # This will work only for user agents that support symmetric
> >>> # communication. We tested quite many of them and majority is
> >>> # smart enough to be symmetric. In some phones it takes a
> >>> configuration
> >>> # option. With Cisco 7960, it is called NAT_Enable=Yes, with
> >> kphone
> >>> it
> >>> is
> >>> # called "symmetric media" and "symmetric signalling".
> >>>
> >>> 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
> >>> };
> >>> };
> >>>
> >>> # labeled all transaction for accounting
> >>> setflag(1);
> >>> setflag(2);
> >>>
> >>> # 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("1.1.1.1","subscriber")) {
> >>> www_challenge("1.1.1.1", "0");
> >>> break;
> >>> };
> >>>
> >>> save("location");
> >>> break;
> >>> };
> >>>
> >>> if(uri=~"^sip:00*"){
> >>> append_hf("P-hint: PSTN call\r\n");
> >>> route(1);
> >>> 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")) {
> >>> sl_send_reply("404", "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();
> >>> };
> >>>
> >>> if(uri=~"^sip:00*"){
> >>> rewritehost("2.2.2.2");
> >>> t_relay_to_udp("2.2.2.2","5060");
> >>> break;
> >>> };
> >>>
> >>> # 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();
> >>> };
> >>> }
> >>>
> >>> # !! Nathelper
> >>> onreply_route[1] {
> >>> # NATed transaction ?
> >>> if (isflagset(6) && status =~ "(183)|2[0-9][0-9]") {
> >>> fix_nated_contact();
> >>> 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();
> >>> };
> >>> }
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>> From: "Kapil Dhawan" <sersavvy at hotmail.com>
> >>>> To: sersavvy at hotmail.com
> >>>> CC: serusers at lists.iptel.org
> >>>> Subject: RE: [Serusers] PSTN
> >>>> Date: Tue, 01 Jun 2004 05:02:54 +0000
> >>>>
> >>>> Hi my second part is done...i have used t_relay_to_udp rather than
> >>>> forward
> >>>> for pstn calls and now logs are coming....for pstn as well
> >>>>
> >>>> but first is till not done.
> >>>>
> >>>>> From: "Kapil Dhawan" <sersavvy at hotmail.com>
> >>>>> To: serusers at lists.iptel.org
> >>>>> Subject: [Serusers] PSTN
> >>>>> Date: Tue, 01 Jun 2004 00:59:07 +0000
> >>>>>
> >>>>> Hi List
> >>>>>
> >>>>> I am running rtpproxy and nathelper which is fine for me...but
> >>>>> when i
> >>>> transfer all calls starting with 00 to my SIP gateway...then person
> >>>> calling
> >>>> from public IP is able to hear properly the pstn call and person
> >>>> calling behind NAT can not hear but the pstn callee can hear that
> >>>> behind NAT guy...
> >>>>>
> >>>>> and second is i am storing logs in acc table...there is i make a
> >>>> SIP-SIP
> >>>> call, i get proper logs but if i make PSTN call whether from
> >>>> public or private IP, i only get BYE record..
> >>>>>
> >>>>> below is my ser.cfg
> >>>>>
> >>>>>
> >>>>> #
> >>>>> # $Id: nathelper.cfg,v 1.1.2.1 2003/11/24 14:47:18 janakj Exp $
> >>>>> #
> >>>>> # simple quick-start config script including nathelper support
> >>>>>
> >>>>> # This default script includes nathelper support. To make it work
> >>>>> # you will also have to install Maxim's RTP proxy. The proxy is
> >>>>> enforced # if one of the parties is behind a NAT.
> >>>>> #
> >>>>> # If you have an endpoing in the public internet which is known to
> >>>>> # support symmetric RTP (Cisco PSTN gateway or voicemail, for
> >>>>> example), # then you don't have to force RTP proxy. If you don't
> >>>>> want to enforce # RTP proxy for some destinations than simply use
> >>>>> t_relay() instead of # route(1)
> >>>>> #
> >>>>> # Sections marked with !! Nathelper contain modifications for
> >>>>> nathelper #
> >>>>> # NOTE !! This config is EXPERIMENTAL !
> >>>>> #
> >>>>> # ----------- global configuration parameters
> >>>>> ------------------------
> >>>>>
> >>>>> debug=8 # debug level (cmd line: -dddddddddd)
> >>>>> fork=yes
> >>>>> log_stderror=yes # (cmd line: -E)
> >>>>>
> >>>>> /* Uncomment these lines to enter debugging mode
> >>>>> 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"
> >>>>> loadmodule "/usr/local/lib/ser/modules/textops.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"
> >>>>>
> >>>>> # !! Nathelper
> >>>>> loadmodule "/usr/local/lib/ser/modules/nathelper.so"
> >>>>>
> >>>>> # !! Accounting
> >>>>> loadmodule "/usr/local/lib/ser/modules/acc.so"
> >>>>>
> >>>>> # !! Voicemail And Conference
> >>>>> loadmodule "/usr/local/lib/ser/modules/vm.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)
> >>>>>
> >>>>> # !! Nathelper
> >>>>> # -- nathelper params --
> >>>>> 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
> >>>>>
> >>>>> # !! Accounting
> >>>>> # -- acc params --
> >>>>> # set the reporting log level
> >>>>> modparam("acc", "log_level", 2) # Set log_level to 2
> >>>>> # number of flag, which will be used for accounting; if a message
> >>>>> is # labeled with this flag, its completion status will be
> >>>>> reported modparam("acc", "log_flag", 1 )
> >>>>> modparam("acc", "log_missed_flag", 2)
> >>>>> modparam("acc", "failed_transactions", 1)
> >>>>> modparam("acc", "report_cancels", 1)
> >>>>> modparam("acc", "db_url", "mysql://ser:heslo@localhost/ser")
> >>>>> modparam("acc", "db_flag", 1)
> >>>>> modparam("acc", "db_missed_flag", 2)
> >>>>>
> >>>>> # !! Transaction
> >>>>> # -- tm params --
> >>>>> modparam("tm", "fr_inv_timer", 200)
> >>>>>
> >>>>> # ------------------------- 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;
> >>>>> };
> >>>>>
> >>>>> # !! 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
> >>>>> 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:")) {
> >>>>> log("LOG: Someone trying to register from private IP,
> >>>>> rewriting\n");
> >>>>>
> >>>>> # This will work only for user agents that support symmetric
> >>>>> # communication. We tested quite many of them and majority is
> >>>>> # smart enough to be symmetric. In some phones it takes a
> >>>>> configuration # option. With Cisco 7960, it is called
> >>>>> NAT_Enable=Yes, with
> >>>> kphone
> >>>> it is
> >>>>> # called "symmetric media" and "symmetric signalling".
> >>>>>
> >>>>> 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
> >>>>> };
> >>>>> };
> >>>>>
> >>>>> # labeled all transaction for accounting
> >>>>> setflag(1);
> >>>>> setflag(2);
> >>>>>
> >>>>> # 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("220.226.42.185","subscriber")) {
> >>>>> www_challenge("220.226.42.185", "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")) {
> >>>>> sl_send_reply("404", "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");
> >>>>>
> >>>>> if(uri=~"^sip:00*")
> >>>>> {
> >>>>> rewritehost();
> >>>>> forward()
> >>>>> break;
> >>>>> };
> >>>>>
> >>>>> # send it out now; use stateful forwarding as it works reliably
> >>>>> # even for UDP2TCP
> >>>>> if (!t_relay()) {
> >>>>> sl_reply_error();
> >>>>> };
> >>>>> }
> >>>>>
> >>>>> # !! Nathelper
> >>>>> onreply_route[1] {
> >>>>> # NATed transaction ?
> >>>>> if (isflagset(6) && status =~ "(183)|2[0-9][0-9]") {
> >>>>> fix_nated_contact();
> >>>>> 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();
> >>>>> };
> >>>>> }
> >>>>>
> >>>>> _________________________________________________________________
> >>>>> Post Classifieds on MSN classifieds.
> >>>> http://go.msnserver.com/IN/44045.asp
> >>>> Buy and Sell on MSN Classifieds.
> >>>>>
> >>>>> _______________________________________________
> >>>>> Serusers mailing list
> >>>>> serusers at lists.iptel.org
> >>>>> http://lists.iptel.org/mailman/listinfo/serusers
> >>>>
> >>>
> >>> _________________________________________________________________
> >>> Marriage? http://www.bharatmatrimony.com/cgi-bin/bmclicks1.cgi?74
> >>> Join BharatMatrimony.com for free.
> >>>
> >>> _______________________________________________
> >>> Serusers mailing list
> >>> serusers at lists.iptel.org
> >>> http://lists.iptel.org/mailman/listinfo/serusers
> >>>
> >>
> >
> > _________________________________________________________________
> > Get ready to dream with Citibank Ready Cash.
> > http://go.msnserver.com/IN/49355.asp The Next Generation Personal
> > Loan!
> >
> > _______________________________________________
> > Serusers mailing list
> > serusers at lists.iptel.org
> > http://lists.iptel.org/mailman/listinfo/serusers
> >
> > _______________________________________________
> > Serusers mailing list
> > serusers at lists.iptel.org
> > http://lists.iptel.org/mailman/listinfo/serusers
>
More information about the sr-users
mailing list