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37563 discussions

dispatcher - call load distribution algorithm
by Giuseppe Carella 21 Jul '11

21 Jul '11

Hi all, I'm using kamailio like dispatcher, for INVITE requests. The client is the IMS bench as UAC, and the backend node are sip servlet container, in which is running an UAS servlet. Between the client and kamailio there is the OpenIMSCore. I was using the hash over callid like algorithm, and all was going well. Now I'm trying to use the last algorithm, based on the call load of the destination backend, and the ACK message of the same dialog is sent to another instance. I read on the documentation that there is no SIP dialog tracking depending on other modules. This is my configuration: # main request routing block route { if ( !mf_process_maxfwd_header("10") ) { sl_send_reply("483","To Many Hops"); exit; } # select from first dst group by round-robin if(!ds_select_dst("1", "10")) { sl_send_reply("500", "No destination available"); exit; } t_on_failure("RTF_DISPATCH"); if(!t_relay()) { sl_reply_error(); exit; } } # dispatcher failure routing block failure_route[RTF_DISPATCH] { if (t_is_canceled()) { exit; } # select next destination only for local timeout if (t_branch_timeout() & !t_branch_replied()) { if(ds_next_dst()) { t_on_failure("RTF_DISPATCH"); t_relay(); exit; } } } Thanks and best regards, Giuseppe

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Kamailio presence server problem with PostgreSQL
by Roberto Fichera 21 Jul '11

21 Jul '11

Hi all, I've setup for testing purpose an xcap server with Kamailio v3.1.4 backed with a postgresql v8.4.8 all in 64bits versions. On that configuration, I'm getting the errors below and consequently the presence doesn't correctly reports the status. Does anyone has the same problem? Best regards, Roberto Fichera. Jul 19 10:31:52 roberto /usr/sbin/kamailio[2005]: INFO: pua_usrloc [ul_publish.c:211]: should not send ul publish Jul 19 10:31:52 roberto /usr/sbin/kamailio[2015]: ERROR: <script>: ===== xhttp: xcap-caps : <null> Jul 19 10:31:52 roberto /usr/sbin/kamailio[2017]: ERROR: <script>: ===== xhttp: resource-lists : sip:roberto@192.168.2.92 Jul 19 10:31:52 roberto /usr/sbin/kamailio[2017]: ERROR: <script>: ===== xhttp: get sip:roberto@192.168.2.92 => /xcap-root/resource-lists/users/sip:roberto@192.168.2.92/index Jul 19 10:31:52 roberto /usr/sbin/kamailio[2021]: ERROR: <script>: ===== xhttp: pres-rules : sip:roberto@192.168.2.92 Jul 19 10:31:52 roberto /usr/sbin/kamailio[2021]: ERROR: <script>: ===== xhttp: get sip:roberto@192.168.2.92 => /xcap-root/pres-rules/users/sip:roberto@192.168.2.92/presrules Jul 19 10:31:52 roberto /usr/sbin/kamailio[1999]: ERROR: presence [subscribe.c:711]: Missing or unsupported event header field value Jul 19 10:31:52 roberto /usr/sbin/kamailio[1999]: ERROR: presence [subscribe.c:714]: #011event= message-summary Jul 19 10:31:52 roberto /usr/sbin/kamailio[2004]: INFO: presence [notify.c:1588]: NOTIFY sip:roberto@192.168.2.92 via sip:roberto@192.168.2.92:5090;transport=udp;registering_acc=192_168_2_92 on behalf of sip:roberto@192.168.2.92 for event presence.winfo Jul 19 10:31:52 roberto /usr/sbin/kamailio[2005]: INFO: presence [notify.c:1588]: NOTIFY sip:roberto@192.168.2.92 via sip:roberto@192.168.2.92:5090;transport=udp;registering_acc=192_168_2_92 on behalf of sip:mattia@192.168.2.92 for event presence *Jul 19 10:31:52 roberto /usr/sbin/kamailio[1999]: ERROR: db_postgres [km_dbase.c:427]: invalid query, execution aborted Jul 19 10:31:52 roberto /usr/sbin/kamailio[1999]: ERROR: db_postgres [km_dbase.c:428]: driver error: PGRES_FATAL_ERROR, ERROR: null value in column "sender" violates not-null constraint#012* *Jul 19 10:31:52 roberto /usr/sbin/kamailio[1999]: WARNING: db_postgres [km_dbase.c:473]: unexpected result returned*

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xcap server - http load–balancer: xcap authentication problem
by laura testi 21 Jul '11

21 Jul '11

Hello all, I’m using two Kamailio Presence Servers that are also XCAP Servers for the presence and resources management and the Kamailio Dispatcher in order to balance the SIP requestes coming from SIP Client. Then I’m trying to configure a HTTP load–balancer for the xcap/http traffic. I’m testing both Apache and INginx HTTP proxy but I’m facing with a problem related with the Xcap authentication: when a client sends the first xcap request to the http load-balancer, it forwards the request to one of the configured Xcap Server that replies with the 401 response in order to let the client authenticates. So, the client sends the second request with the Digest authentication to the http load-balancer. But, sometimes, the http load-balancer forwards the authenticate request to the second Xcap Server that is not able to authenticate the request. Then the client receive the “Unauthorized” response… Could you please give us some hints about this problem? Thanks in advance, laura

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dns_srv_lb
by Jon Bonilla 21 Jul '11

21 Jul '11

Hi all I'm running a kamailio 3.1 based proxy which actually relays REGISTER requests to a domain "example.com" I've setup a DNS SRV record for that domain which returns two hosts with same prio and weight. I want kamailio to balance the requests to both servers 50%. Taking a look to ./doc/dns.txt I've setup these configuration options: dns_try_ipv6=no dns_retr_time=1 dns_retr_no=1 dns_use_search_list=no use_dns_cache=on use_dns_failover=on dns_srv_lb=on If I understood right the last setting would have to make kamailio work as I described, balancing the requests between both servers. But my logs say that kamailio is actually using only one of the ip addresses (host2.example.com) to send the REGISTER requests. Here's the output of sercmd dns.view: sercmd> dns.view { name: _sip._udp.example.com type: SRV size (bytes): 232 reference counter: 1 permanent: no expires in (s): 31364 last used (s): 446 negative entry: no rr name: host1.example.com rr port: 5060 rr priority: 0 rr weight: 0 rr expires in (s): 31364 rr name: host2.example.com rr port: 5060 rr priority: 0 rr weight: 0 rr expires in (s): 31364 } { name: host2.example.com type: A size (bytes): 128 reference counter: 1 permanent: no expires in (s): 592964 last used (s): 446 negative entry: no rr ip: 192.168.0.103 rr expires in (s): 592964 } { name: host1.example.com type: A size (bytes): 128 reference counter: 1 permanent: no expires in (s): 592964 last used (s): 11835 negative entry: no rr ip: 192.168.0.102 rr expires in (s): 592964 } Any suggestions? What am I doing wrong? Thanks, Jon

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Call is terminated in callee side after 36s @Kamailio 3.1 @debian sqeeze64
by Coca 21 Jul '11

21 Jul '11

Hi List, I have a Kamailio3.1 server and RTPProxy running in WAN. The calls between UA will automatically terminated in Callee UA side 36s after connected, while no one sends a BYE. While Kamailio and UA are in LAN at all , everything is just working well. Is it my rtpproxy doesn't working correctly or something else is wrong? What can I do to fix it. Any hint?? BTW, Kamailio is installed following official guide http://www.kamailio.org/dokuwiki/doku.php/install:kamailio-3.1.x-from-git The kamailio.cfg wasn't changed at all except for below: ----------------------------------------------------------------------------------------- 1) adding the following lines: #!define WITH_MYSQL #!define WITH_AUTH #!define WITH_USRLOCDB #!define WITH_NAT 2)uncommenting the line below in route[REGISTRAR], setbflag(FLB_NATSIPPING); 3)change rtpproxy port corresponding modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:22222") ----------------------------------------------------------------------------------------- and my rtpproxy1.2.1 was installed by apt-get install rtpproxy, with 1) /etc/default/rtpproxy changed into: # Defaults for rtpproxy # The control socket. #CONTROL_SOCK="unix:/var/run/rtpproxy/rtpproxy.sock" # To listen on an UDP socket, uncomment this line: CONTROL_SOCK=udp:127.0.0.1:22222 LISTEN_ADDR=xx.xx.xx.xx # Additional options that are passed to the daemon. EXTRA_OPTS="-l ${LISTEN_ADDR}" 2) and started by rtpproxy -l xx.xx.xx.xx -s udp:localhost:22222 -u kamailio Your help will be great appreciated. Coca

1 0

Kamailio: 500 Server error occurred (19/SL).
by Max Doronin 21 Jul '11

21 Jul '11

Hello guys, I have strange behavior on my Kamailio-1.5.1-notls instance. I have LCR and TM modules enabled.For a particular destination I have 4 routes to try. When I call to non-existing number, it tries - route 1 (404 Not Found) - route 2 (404 Not Found) - route 3 (503 Service unavailable) And the problem is with the last 503. Kamailio ACKs it, immediately drops these 2 lines into syslog Jul 13 04:14:47 /usr/local/sbin/kamailio[23572]: ERROR:tm:t_forward_nonack: no branch for forwarding Jul 13 04:14:47 /usr/local/sbin/kamailio[23572]: ERROR:tm:w_t_relay: t_forward_nonack failed And sends SIP/2.0 500 Server error occurred (19/SL). To the call originator. 30 microseconds later it sends SIP/2.0 500 Service Unavailable. to the originator again Latter 500 looks like the relayed original "503 Service unavailable". I think so because the Reason header is the same: Reason: SIP;cause=503;text="Service Unavailable";icodetext="NoCircuitAvailable";iintcode=10034;isubsystem=3. Obviously call is terminated. I noticed that that last peer rewrites my Via headers like this: Original: == Via: SIP/2.0/UDP 187.45.214.132;branch=z9hG4bK3dac.fae9b793.2. Via: SIP/2.0/UDP 192.168.2.33:5622;received=49.49.59.23;branch=z9hG4bK-d8754z-a6ba40014f97fb7c-1---d8754z-;rport=23832. == Rewritten == Via: SIP/2.0/UDP 187.45.214.132;received=187.45.214.132;branch=z9hG4bK3dac.fae9b793.2,SIP/2.0/UDP 192.168.2.33:5622;received=49.49.59.23;branch=z9hG4b == I tried to modify via1_matching parameter (1 -> 0) but no changes. My questions are: - What can be the reason of that 500 with 19/SL - Can kamailio properly handle this 1 line Via header? - What can be the reason of that "t_forward_nonack: no branch for forwarding"? Regards, Max

2 4

(no subject)
by Eliezer Croitoru 20 Jul '11

20 Jul '11

1 0

Re: [SR-Users] IMC module unresolved issues
by Ozren Lapcevic 20 Jul '11

20 Jul '11

Hi, did anyone run into similar problems or have successfully set up IMC module with mysql? Can you please share your know-how on the subject? Besides issue described below, I also had several other issues, but I think they all might be related to the fact that my rooms and members are only stored in cache, but not in the database. To repeat, this is really strange behavior because all other modules that I'm using write to the database without a problem. Best regards Ozren On Mon, May 30, 2011 at 6:28 PM, Ozren Lapcevic <ozren.lapcevic(a)gmail.com>wrote: > Hi all, > > I'm trying to configure IMC module and get it to work properly but I've run > into problems with saving IMC module data to mysql database. > > I'm using following code provided in IMC module documentation: > > modparam("imc", "db_url", DBURL) > > ## route block ### > if(is_method("MESSAGE") && (uri=~ "sip:chat-[0-9]+@") || (uri=~ > "sip:chat-manager@")) { > xlog("L_INFO", "going to imc: F [$fu] T [$tu] B [$rb]\n"); > > if(imc_manager()) > sl_send_reply("200", "ok - imc_manager()"); > else > sl_send_reply("500", "command error"); > exit; > } > > I am creating chat room with following message sent to chat-manager(a)abc.hr: > "#create chat-111" > > DEBUG log returns following: > May 30 18:01:23 ser-test /usr/local/kamailio-ozren/sbin/kamailio[13225]: > INFO: <script>: going to imc: F [sip:oz@abc.hr] T [sip:chat-manager@abc.hr] > B [#create chat-111] > May 30 18:01:23 ser-test /usr/local/kamailio-ozren/sbin/kamailio[13225]: > DEBUG: imc [imc.c:525]: found command > May 30 18:01:23 ser-test /usr/local/kamailio-ozren/sbin/kamailio[13225]: > DEBUG: imc [imc_cmd.c:146]: command: [create] > May 30 18:01:23 ser-test /usr/local/kamailio-ozren/sbin/kamailio[13225]: > DEBUG: imc [imc_cmd.c:151]: parameter 0=[chat-111] > May 30 18:01:23 ser-test /usr/local/kamailio-ozren/sbin/kamailio[13225]: > DEBUG: imc [imc_cmd.c:171]: new room [chat-111] > May 30 18:01:23 ser-test /usr/local/kamailio-ozren/sbin/kamailio[13225]: > DEBUG: imc [imc_cmd.c:186]: added room uri= sip:chat-111@abc.hr > May 30 18:01:23 ser-test /usr/local/kamailio-ozren/sbin/kamailio[13225]: > DEBUG: imc [imc_mng.c:322]: [uri]= sip:oz@abc.hr > May 30 18:01:23 ser-test /usr/local/kamailio-ozren/sbin/kamailio[13225]: > DEBUG: imc [imc_mng.c:326]: [user]= oz > May 30 18:01:23 ser-test /usr/local/kamailio-ozren/sbin/kamailio[13225]: > DEBUG: imc [imc_cmd.c:196]: added the owner as the first member [ > sip:oz@abc.hr] > > "./kamctl fifo imc_list_rooms" returns following: > ROOM:: URI=sip:chat-111@abc.hr MEMBERS=0 OWNER=sip:oz@abc.hr > > "./kamctl fifo imc_list_members sip:chat-111@abc.hr" returns following: > ROOM:: sip:chat-111@abc.hr NR_OF_MEMBERS=1 > MEMBER:: sip:oz@abc.hr > > However, that data is not persisted/saved in the imc_rooms and imc_members > tables in the database. Any clues what might be the problem here? > > Any help is greatly appreciated. > > Best regards, > Ozren Lapcevic > > PS > I'm runing Kamailio 3.1.4 with default cfg file with enabled mysql, > multidomain, usrlocdb, auth and NAT. I can register clients, establish > calls, send IMs, etc. imc_rooms and imc_members tables were created when > kamailio was installed. I've also checked imc-create.sql script and tables > are correctly created. > > The same DBURL used for imc is also used for auth_db, domain and usrloc > modules and I haven't experienced any problems with those modules and > database connection/persistence. domain, location, version and subscriber > tables are correctly populated. > > I'm not getting any errors from imc_manager(), it returns 200 OK. I can't > trace any errors in DEBUG related to problems with mysql database. >

2 7

how do i set up outbound on iptel
by Bill Peebles 20 Jul '11

20 Jul '11

i really want to find out how. I dont have a home phone.

2 1

Project conference in Berlin, Sep 02, 2011
by Daniel-Constantin Mierla 20 Jul '11

20 Jul '11

Hello, the details for organizing the 10 years SER conference in Berlin were settled. After the initial announcement the interest was quite high, by now we have a good number of attendees and speakers. We are still open for new speakers, with the target of showing use cases of Kamailio or SER. The event will be hosted by FhG Fokus institute, where SER project was started. It will be a day full of presentations, followed by an evening social networking event. We hope to be able to provide the evening event for free to everyone attending, for that reason we look for sponsorships - if you are interested to sponsor, contact us and we will provide more details about available options. Registration is now open for attendees. Note that the number of seats is limited, don't wait for the last minute to register. More details, including the registration form can be accessed on the event's web page: * http://sip-router.org/10-years-ser/ Looking forward to meeting you in Berlin, enjoy a great summer till then, Daniel -- Daniel-Constantin Mierla -- http://www.asipto.com Kamailio Advanced Training, Oct 10-13, Berlin: http://asipto.com/u/kat http://linkedin.com/in/miconda -- http://twitter.com/miconda

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