Re: [Serusers] PSTN

From: "Kapil Dhawan" <sersavvy(a)hotmail.com> To: sersavvy(a)hotmail.com CC: serusers(a)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(a)hotmail.com> > To: serusers(a)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(a)lists.iptel.org > http://lists.iptel.org/mailman/listinfo/serusers