sr-users April 2004

sr-users@lists.kamailio.org

138 participants
266 discussions

[Serusers] DNS SRV RR : zone file: Help
by Saber Fakih 26 Apr '04

26 Apr '04

Hi, I am have managed to create the zone file, (sipserver.ipaxiom.com) and have tried running the command [root@sipserver saber]# dig -t SRV _sip._udp.sipserver.ipaxiom.com ; <<>> DiG 9.2.1 <<>> -t SRV _sip._udp.sipserver.ipaxiom.com ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 38430 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;_sip._udp.sipserver.ipaxiom.com. IN SRV ;; Query time: 19 msec ;; SERVER: 81.86.193.6#53(81.86.193.6) ;; WHEN: Sun Apr 25 23:08:32 2004 ;; MSG SIZE rcvd: 49 as you can see u I do not get the answer from the server. I am may have done something wrong, I have included the sipserver.ipaxiom.com.zone file You may be able to point me in the right direction. below is the zone file [root@sipserver saber]# more /var/named/sipserver.ipaxiom.com.zone sipserver.ipaxiom.com 86400 IN SOA sipserver.ipaxiom.com. customercare.ipaxiom.com ( 1998111908 ; serial 36000 ; refresh 900 ; retry 36000 ; expire 28800 ; minimum ) IN NS sipserver.ipaxiom.com. IN A 81.86.193.8 ; _sip._udp SRV 0 0 5060 gateway.sipserver.ipaxiom.com. gateway IN A 81.86.193.8 www IN CNAME gateway.sipserver.ipaxiom.com. Hope to hear from you soon. many thanks Best Regards Saber email: saber(a)ipaxiom.com IPaXiom Communications

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[Serusers] Maximum Call Duration
by Peter Rex Drescher 26 Apr '04

26 Apr '04

Due to a known limitation in the Cisco IOS, it is not possible to restrict the duration of a call on a Cisco gateway. Since I have been hit by this a couple of times - one time having 6 timeslots on an E1 open for 3 days - I would like to hear any suggestions on how to remedy this utilizing the SER. Feel free... :-) Sincerely, Peter

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[Serusers] [Question]:module nathelper
by jimmy huang 26 Apr '04

26 Apr '04

Hi : I have download the latest ser and all modules with CVS (2004/04/21) i still testing the same environment with nathelper , rtpproxy UA 1(kphone 3.14) -> NAT -> Ser <- UA 2 (kphone 3.14) UA1 can register to ser with public (after NAT ) correctly , but when UA 2 INVITE UA1 When UA1 reply 200 OK with SDP Ser seems not modify the SDP to public ip and port so when UA2 receive SDP , it still can't know or should say it can't send rtp to correct IP:port it seems my config has some bug , so sdp has not been modify ?? can any one give my any ideas? and in this scenario , is ser modify the sdp to force UA to send rtp to ser then rtpproxy will handle the both UAs' rtp to transport to the both UAs? these are my ser.cfg refered from (http://www.informatik.uni-bremen.de/~prelle/terena/cookbook/main/ch04s07.ht ml ) ============================================================================ # # $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) #/* 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" # ------------------ 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" #++++++++++ jimmy added ++++++++++++++++++ loadmodule "/usr/local/lib/ser/modules/textops.so" loadmodule "/usr/local/lib/ser/modules/nathelper.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" # ----------------- setting module-specific parameters --------------- #++++++++++ jimmy added ++++++++++++++++++ #we will you flag 6 to mark NATed contacts modparam("registrar","nat_flag",6) #Enable NAT pinging modparam("nathelper","natping_interval",3) #ping only contacts that are known to be behind NAT modparam("nathelper","ping_nated_only",1) #---------------------------------------------------- # -- 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) # ------------------------- request routing logic ------------------- # main routing logic route{ #++++++++++ jimmy added ++++++++++++++++++ if(nat_uac_test("3")) { if((method == "REGISTER") || !(search("^Record-Route:"))) { log("LOG:Someone trying to register from private IP, rewriting\n"); fix_nated_contact(); if(method == "INVITE") { #+++++ log("+++++++++++++++++++++++++++++++++++++\n"); log("method==invite , so fix+nated_sdp\n"); log("+++++++++++++++++++++++++++++++++++++\n"); #----- fix_nated_sdp("1"); }; force_rport(); setflag(6); }; }; #---------------------------------------------------- # 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; }; # 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; }; # 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("iptel.org", "subscriber")) { # www_challenge("iptel.org", "0"); # break; # }; 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(); }; } #++++++++++ jimmy added +++++++++++++++++++++ route[1] { if(uri=~"[@:](192\.168\.|10\.|172\.16)" && !search("^Route:")) { sl_send_reply("479","we don't forward to private IP address"); break; }; if(isflagset(6)) { force_rtp_proxy(); t_on_reply("1"); append_hf("P-Behind-NAT: Yes\r\n"); } if(!t_relay()) { sl_reply_error(); break; } } onreply_route[1] { if(status =~ "(183)|2[0-9][0-9]") { fix_nated_contact(); force_rtp_proxy(); }; } #---------------------------------------------------- ============================================================================ thanks Jimmy

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[Serusers] Bug-report: ser_mysql.sh, Error 1054
by Bernie Hoeneisen 26 Apr '04

26 Apr '04

In the current CVS unstable version there seams to be a bug in the ser_mysql.sh: I have tried to upgrade from my stable 0.8.12 to the CVS unstable and found the following issues: bhoeneis@wil:~/ser/sip_router$ scripts/ser_mysql.sh reinstall MySql password for root: creating backup database dumping table content (ser) dropping table (ser) creating new structures creating database ser ... restoring table content ERROR 1054 at line 42: Unknown column 'usernamename' in 'field list' reinstall: restoring table failed I solved this by commenting out the following line in ser_mysql.sh # sed "s/[uU][sS][eE][rR]/$USERCOL/g" | But then thow following error came as next after running the "fixed" ser_mysql.sh: ERROR 1054 at line 108: Unknown column 'perms' in 'field list' This one I circumvented by inserting a line, which does replace all the strings perms by rpid as follows: sed "s/[uU][sS][eE][rR]_[iI][dD]/user/g" $tmp_file | # sed "s/[uU][sS][eE][rR]/$USERCOL/g" | sed "s/[pP][eE][rR][mM][sS]/rpid/g" | sed "s/[rR][eE][aA][lL][mM]/domain/g"> ${tmp_file}.2 After running it again I executed the following in the mysql client: update subscriber set rpid="NULL" where rpid !="NULL" I hope someone can fix this once... and that my fix really helps...;-) cheers, Bernie PS: Here the diff for a quick and dirty fix: bhoeneis@wil:~/ser/sip_router$ cvs diff -u scripts/ser_mysql.sh Index: scripts/ser_mysql.sh =================================================================== RCS file: /cvsroot/ser/sip_router/scripts/ser_mysql.sh,v retrieving revision 1.52 diff -u -r1.52 ser_mysql.sh --- scripts/ser_mysql.sh 13 Apr 2004 19:14:32 -0000 1.52 +++ scripts/ser_mysql.sh 20 Apr 2004 17:39:49 -0000 @@ -697,7 +697,8 @@ exit 1 fi sed "s/[uU][sS][eE][rR]_[iI][dD]/user/g" $tmp_file | - sed "s/[uU][sS][eE][rR]/$USERCOL/g" | + # sed "s/[uU][sS][eE][rR]/$USERCOL/g" | + sed "s/[pP][eE][rR][mM][sS]/rpid/g" | sed "s/[rR][eE][aA][lL][mM]/domain/g"> ${tmp_file}.2 #3 drop original database echo "dropping table ($DBNAME)"

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[Serusers] SEMS fifo_server errors
by lakmal＠lankacom.net 26 Apr '04

26 Apr '04

Hi, I managed to get rid of the Wrong FIFO Interface version. Now I'm getting these errors on /var/log/messages and in sems debug mod, when making a call with the same configuration. Is it again due to a problem in versrion? The the sems is downloaded from ftp site and is sems_2004_01_04.tar.gz. I tried this with ser downloaded via cvs and the one from the ftp site. Any ideas? Apr 25 09:16:06 compaq2 ser[30320]: ERROR: fifo_server: command vm_reply is not available Apr 25 09:16:06 compaq2 ser[30320]: ERROR: fifo_server: command must have at least 3 chars Apr 25 09:16:06 compaq2 ser[30320]: ERROR: fifo_server: command must begin with :: 000076B70A6C036D Apr 25 09:16:06 compaq2 ser[30320]: ERROR: fifo_server: command must begin with :: Content-Type: application/sdp Apr 25 09:16:06 compaq2 ser[30320]: ERROR: fifo_server: command must begin with :: v=0 Apr 25 09:16:06 compaq2 ser[30320]: ERROR: fifo_server: command must begin with :: s=session Apr 25 09:16:06 compaq2 ser[30320]: ERROR: fifo_server: command must begin with :: t=0 0 Apr 25 09:16:06 compaq2 ser[30320]: ERROR: fifo_server: command must begin with :: a=rtpmap:3 gsm/8000 Apr 25 09:16:06 compaq2 ser[30320]: ERROR: fifo_server: command vm_reply is not available Apr 25 09:16:06 compaq2 ser[30320]: ERROR: fifo_server: command must begin with :: could not send response. Apr 25 09:16:06 compaq2 ser[30320]: ERROR: fifo_server: command must begin with :: 000076B70A6C036D Apr 25 09:16:06 compaq2 ser[30320]: ERROR: fifo_server: command must have at least 3 chars --------------------------------------------------------------------- sems debug mode shows this --------------------------------------------------------------------- v=0 o=username 0 0 IN IP4 24.248.99.200 s=session c=IN IP4 24.248.99.200 t=0 0 m=audio 39340 RTP/AVP 3 a=rtpmap:3 gsm/8000 . > (30452) DEBUG: openReplyFifo (AmRequest.cpp:358): flags=800 (30452) DEBUG: openReplyFifo (AmRequest.cpp:360): flags=0 (30452) DEBUG: write_to_fifo (AmRequest.cpp:702): Write to fifo: completed (30452) DEBUG: getReturnCode (AmRequest.cpp:413): response from Ser: 500 command 'vm_reply' not available (30452) DEBUG: sendToFIFO (AmRequest.cpp:213): sendToFifo returns ret=getReturnCode=0 (30452) ERROR: reply (AmRequest.cpp:309): AmRequestUAS::reply: 500 command 'vm_reply' not available (30452) ERROR: run (AmSession.cpp:155): 500 could not send response. (30452) DEBUG: sendToFIFO (AmRequest.cpp:194): msg=<:vm_reply:000076F4226615DC 500 could not send response. 58537:73151574 000076B70A6C036D Contact: <sip:1001@24.248.99.200:5090> . . > (30452) DEBUG: openReplyFifo (AmRequest.cpp:358): flags=800 (30452) DEBUG: openReplyFifo (AmRequest.cpp:360): flags=0 (30452) DEBUG: write_to_fifo (AmRequest.cpp:702): Write to fifo: completed (30452) DEBUG: getReturnCode (AmRequest.cpp:413): response from Ser: 500 command 'vm_reply' not available (30452) DEBUG: sendToFIFO (AmRequest.cpp:213): sendToFifo returns ret=getReturnCode=0 (30452) ERROR: reply (AmRequest.cpp:309): AmRequestUAS::reply: 500 command 'vm_reply' not available (30452) DEBUG: sadSession (AmSession.cpp:305): searching for session to destroy (hash=AF821C77-9705-11D8-AA55-00A0C9703D22(a)203.143.58.1931664479517,sess_key=000076B70A6C036D) (30452) DEBUG: findSession (AmSession.cpp:369): session found with key (30452) DEBUG: destroySession (AmSession.cpp:327): sess_it != a_sessions.end() (30452) DEBUG: destroySession (AmSession.cpp:330): it != sess_it->second.end() (30452) DEBUG: destroySession (AmSession.cpp:337): session found: stopping session (30452) DEBUG: stopAndQueue (AmSession.cpp:285): session cleaner trying to stop 80c7b30 (30452) DEBUG: postEvent (AmEventQueue.cpp:47): AmEventQueue: trying to post event (30452) DEBUG: postEvent (AmEventQueue.cpp:55): AmEventQueue: event posted (30452) DEBUG: destroySession (AmSession.cpp:339): session stopped and destroyed (#sessions=0) (30394) DEBUG: run (AmSession.cpp:238): Session cleaner starting its work (30394) DEBUG: run (AmSession.cpp:252): session 80c7b30 has been destroyed' (30394) DEBUG: run (AmSession.cpp:275): Session cleaner finished ----------------------------------------------------------------------- Regards, Lakmal Lankacom Services (Pvt) Ltd. 65C, Dharmapala Mawatha, Colombo 07. Sri Lanka. Tel: +94-1-437545 www.lankacom.net

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[Serusers] SUBSCRIBE/NOTIFY and SCS-Client; SER sends wrong To header field
by Axel Böger 25 Apr '04

25 Apr '04

Hi, I've tried to test the pa module (ser 0.8.12) in conjunction with the SCS Client. The SCS Client appends a special generic param: 'ScsId=ch' at the From: header in the subscribe message. And the NOTIFY answer from ser contains this param but omits the semicolon. So the NOTIFY message will be treated as wrong. The ser config for SUBSCRIBE method is straight forward: if (method=="SUBSCRIBE") { if (t_newtran()) { handle_subscription("registrar"); }; }; # subscribe The ngrep output for this transaction is: # U 195.4.20.71:5060 -> 194.97.99.50:5060 SUBSCRIBE sip:snom@fn-sip.mcbone.net SIP/2.0..Via: SIP/2.0/UDP 195.4.20.71. .To: sip:snom@fn-sip.mcbone.net..From: <sip:aboeger@fn-sip.mcbone.net>;tag =11b78ed1b717552;ScsId=ch..Call-ID: dc8b5b893e68391d9b2dfc807f8e3ba2..CSeq: 1325665313 SUBSCRIBE..Max-Forwards: 70..Contact: sip:195.4.20.71..Event: p resence..Expires: 3600..Content-Length: 0..User-Agent: SCS/v3.1.12.33.... # U 194.97.99.50:5060 -> 195.4.20.71:5060 SIP/2.0 200 OK..Via: SIP/2.0/UDP 195.4.20.71..To: sip:snom@fn-sip.mcbone.ne t;tag=91083b2aa33cb6d5c9260125dc95d5f0-efd4..From: <sip:aboeger@fn-sip.mcb one.net>;tag=11b78ed1b717552;ScsId=ch..Call-ID: dc8b5b893e68391d9b2dfc807f8 e3ba2..CSeq: 1325665313 SUBSCRIBE..Server: Sip EXpress router (0.8.12a (i38 6/linux))..Content-Length: 0..Warning: 392 194.97.99.50:5060 "Noisy feedbac k tells: pid=26439 req_src_ip=195.4.20.71 req_src_port=5060 in_uri=sip:sno m(a)fn-sip.mcbone.net out_uri=sip:snom@fn-sip.mcbone.net via_cnt==1".... # U 194.97.99.50:5060 -> 195.4.20.71:5060 NOTIFY sip:195.4.20.71 SIP/2.0..Via: SIP/2.0/UDP 194.97.99.50;branch=z9hG4b K6d55.e01a2e91.0..To: <sip:aboeger@fn-sip.mcbone.net>ScsId=ch;tag=11b78ed1b 717552..From: sip:snom@fn-sip.mcbone.net;tag=91083b2aa33cb6d5c9260125dc95d5 f0-efd4..CSeq: 1 NOTIFY..Call-ID: dc8b5b893e68391d9b2dfc807f8e3ba2..Content -Length: 302..User-Agent: Sip EXpress router(0.8.12a (i386/linux))..Event: presence..Content-Type: application/xpidf+xml..Subscription-State: active;e xpires=3600....<?xml version="1.0"?>..<!DOCTYPE presence PUBLIC "//IETF//DT D RFCxxxx XPIDF 1.0//EN" "xpidf.dtd">..<presence>..<presentity uri="sip:sno m(a)fn-sip.mcbone.net;method=SUBSCRIBE"/>..<atom id="9r28r49">..<address uri= "sip:snom@fn-sip.mcbone.net">..<status status="closed"/>..</address>..</ato m>..</presence>.. # U 195.4.20.71:5060 -> 194.97.99.50:5060 SIP/2.0 400 Syntax Error..Call-ID: dc8b5b893e68391d9b2dfc807f8e3ba2..CSeq: 1 NOTIFY..From: sip:snom@fn-sip.mcbone.net;tag=91083b2aa33cb6d5c9260125dc95 d5f0-efd4..Via: SIP/2.0/UDP 194.97.99.50;branch=z9hG4bK6d55.e01a2e91.0..Con tent-Length: 136..Content-Type: text/plain....While parsing "To": header ex pected CRLF.. Missing or invalid To header.. Missing or invalid To header.. Missing or invalid To header.. # For me it seems to be an error in ser. Have anyone an idea for a workaround? Regards, Axel

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[Serusers] make prefix=/non/usr/local install
by Dmitry Semyonov 25 Apr '04

25 Apr '04

Hello. There is a mess with 'prefix' argument to 'make install' (as suggested by INSTALL text) in stable CVS version. SER is installed in correct place, but is still trying to search ser.cfg in /usr/local/etc/ser/ by default. This happens due to the fact that the default value of $prefix (/usr/local) is used (CFG_DIR = $cfg-target = $prefix/$cfg-dir) during compilation (when no prefix is given). So, installing to different location with 'make prefix=xxx install' produces the mess. Probably, the described issue affects other pieces of software. Workaround: always use make command with your prefix=xxx argument, i.e. $ make prefix=/my/prefix all; sudo make prefix=/my/prefix install Could anybody fix the problem? (At least in INSTALL file.) ...Bye..Dmitry.

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Re: [Serusers] problems with restarting ser / ser.cfg solved
by 'Jan Janak' 25 Apr '04

25 Apr '04

Please always CC the list, comments inline: On 25-04 18:42, Saber Fakih wrote: > Thanks Jan, > > I traced where the problem was, with regards to the ser.cfg ser restarts > fine thanks. > > I am now trying to work on the zone file, quick question; would I be > editing, the localhost.zone file in /var/named using vi or is there an > easy way of doing it, how would I set this, any ideas. I am looking for > this info. > > _sip._udp SRV 0 0 5060 gateway.mydomain.com > Why don't you read the documentation first ?, See http://iptel.org/ser/doc/ser-howto/ser-Howto.html#AEN132 > Another thing I tried logging in using WM 4.7, does not recognise my > server (sipserver.ipaxiom.com), hence entered the IP and it found the > server, however when enter the user details I get is signing in session > for a while which then times out. Is what I should be expecting?? Any > ideas. This is a known issue with WM, digest realm must be equal to the domain part of From/To URI, this is not the case when you use IP address. Jan.

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[Serusers] SEMS/SER Wrong FIFO Interface version
by lakmal＠lankacom.net 25 Apr '04

25 Apr '04

Hi, I'm trying to implement voicemail with ser_0.8.12 and sems_0.1.0 on the same machine. All servers seem to be running alright, but when I dial a user who's voicemail option is enabled, and is offline, the xlite displays "trying" for a while and then 408 request timeout. The logs in /var/log/messages says Error: ## Wrong FIFO Interface version ## Any idea about this? Configurations are as follows. voicemail.cfg ------------------------------------------------------------------------------------- check_via=no # (cmd. line: -v) dns=no # (cmd. line: -r) rev_dns=no # (cmd. line: -R) port=5090 children=4 fifo="/tmp/vm_ser_fifo" fifo_mode=438 alias=eagle.lankacom.net alias=203.143.0.120 # ------------------ module loading ---------------------------------- loadmodule "/usr/local/lib/ser/modules/sl.so" loadmodule "/usr/local/lib/ser/modules/tm.so" loadmodule "/usr/local/lib/ser/modules/maxfwd.so" loadmodule "/usr/local/lib/ser/modules/mysql.so" loadmodule "/usr/local/lib/ser/modules/vm.so" # ----------------- setting module-specific parameters --------------- modparam("voicemail", "db_url","mysql://ser:heslo@localhost/ser") # ------------------------- request routing logic ------------------- # main routing logic route{ # initial sanity checks -- messages with # max_forwars==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; }; if (!uri==myself) { sl_send_reply("404", "not reponsible for host in r-uri"); break; }; # Voicemail specific configuration - begin if(method=="ACK" || method=="INVITE" || method=="BYE"){ if (!t_newtran()) { log("could not create new transaction\n"); sl_send_reply("500","could not create new transaction"); break; }; t_reply("100","Trying -- just wait a minute !"); if(method=="INVITE"){ log("**************** vm start - begin ******************\n"); if (uri=~"sip:*@*" || uri=~"sip:*@*") { if (!vm("/tmp/am_fifo", "announcement")) { log("couldn't contact announcement server\n"); t_reply("500", "couldn not contact announcement server"); }; } else { if(!vm("/tmp/am_fifo","voicemail")){ log("could not contact the answer machine\n"); t_reply("500","could not contact the answer machine"); }; }; log("**************** vm start - end ******************\n"); } else if(method=="BYE"){ log("**************** vm end - begin ******************\n"); if(!vm("/tmp/am_fifo","bye")){ log("could not contact the answer machine\n"); t_reply("500","could not contact the answer machine"); }; log("**************** vm end - end ******************\n"); }; break; }; if (method=="CANCEL") { sl_send_reply("200", "cancels are junked here"); break; }; sl_send_reply("501", "method not understood here"); } --------------------------------------------------------------------------------------- vm_proxy.cfg --------------------------------------------------------------------------------------- alias=eagle.lankacom.net alias=203.143.0.120 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/mysql.so" loadmodule "/usr/local/lib/ser/modules/group.so" loadmodule "/usr/local/lib/ser/modules/usrloc.so" loadmodule "/usr/local/lib/ser/modules/registrar.so" # time to give up on ringing -- global timer, applies to # all transactions modparam("tm", "fr_inv_timer", 90) # database with user group membership modparam("group", "db_url", "mysql://ser:heslo@localhost/ser") # --------------------- request routing logic ------------------- route { if (!mf_process_maxfwd_header("10")) { log("LOG: Too many hops\n"); sl_send_reply("483", "Alas Too Many Hops"); break; }; if (!(method=="REGISTER")) record_route(); if (loose_route()) { t_relay(); break; }; if (!uri==myself) { t_relay(); break; }; if (method == "REGISTER") { if (!save("location")) { sl_reply_error(); }; break; }; # does the user wish redirection on no availability? (i.e., is he # in the voicemail group?) -- determine it now and store it in # flag 4, before we rewrite the flag using UsrLoc if (is_user_in("Request-URI", "voicemail")) { setflag(4); };# native SIP destinations are handled using our USRLOC DB if (!lookup("location")) { # handle user which was not found route(4); break; }; # if user is on-line and is in voicemail group, enable redirection if (method == "INVITE" && isflagset(4)) { t_on_failure("1"); }; t_relay(); } # ------------- handling of unavailable user ------------------ route[4] { # non-Voip -- just send "off-line" if (!(method == "INVITE" || method == "ACK" || method == "CANCEL")) { sl_send_reply("404", "Not Found"); break; }; # not voicemail subscriber if (!isflagset(4)) { sl_send_reply("404", "Not Found and no voicemail turned on"); break; }; # forward to voicemail now # rewritehostport("eagle.lankacom.net:5090"); # t_relay_to_udp("eagle.lt_relay_to_udp( "eagle.lankacom.net", "5090" ); break; } failure_route[1] { revert_uri(); rewritehostport("eagle.lankacom.net:5090"); append_branch(); t_relay_to_udp("eagle.lankacom.net", "5090"); } Regards, Lakmal Lankacom Services (Pvt) Ltd. 65C, Dharmapala Mawatha, Colombo 07. Sri Lanka. Tel: +94-1-437545 www.lankacom.net

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[Serusers] nat and rtpproxy/mediaproxy
by Richard 25 Apr '04

25 Apr '04

Hi, I looked at the archieve and tried to find a solution for natted clients in a carrier environment. I have to say I am clear as mud. In our senario, some clients are behind nat, while others are not. Clients may move between nat and no-nat. What's the best approach to rtpproxy/mediaproxy. In rtpproxy's readme, it uses "search" to find certain client. It has issues to support other clients. Is nat_uac_test/client_nat_test sufficient to test either src or dest is behind nat and should go through media proxy? What if some clients have stun support? What if some are behind symmetric NAT and some are not? Thanks for your help. Richard __________________________________ Do you Yahoo!? Yahoo! Photos: High-quality 4x6 digital prints for 25� http://photos.yahoo.com/ph/print_splash

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