sr-users November 2010

sr-users@lists.kamailio.org

75 participants
112 discussions

kamctl get number of subscribers
by Jon Bonilla 24 Nov '10

24 Nov '10

Hi all I'm trying to get the number of registered subscribers in a kamailio 3.0.4 setup. I'm trying to use usrloc's exported function "ul_get_num_users" but I get a 500 error: kamctl fifo ul_get_num_users 500 command 'ul_get_num_users' not available Using get_statistics I get: test3:~# kamctl fifo get_statistics usrloc: usrloc:registered_users = 2 usrloc:location-users = 2 usrloc:location-contacts = 2 usrloc:location-expires = 0 Trying to query for a specific stat, seems like I do not use the correct syntax: test3:~# kamctl fifo get_statistics usrloc:registered_users 404 Statistics Not Found Anyone could help me with the correct syntax for the function and fifo? thanks

3 7

SER proxy drops incoming SIP requests
by Igor Potjevlesch 24 Nov '10

24 Nov '10

Hello, After days of debugging, I'll need some help from the SER specialists to troubleshoot this problem. The SER version in service is: 0.9.9+cvs20090925 It's running on a Red Hat EL 5.3 server. I currently have about 10.000 users registered. I encounter several seconds (1 to 5) without replies from the SIP proxy every 30 seconds. Some requests are delayed, but most of them are not replied at all. At the same time, all the 6 SER childs (forking is enabled) get about 100% used CPU (from "top") After some troubleshooting, I found that the rythm of those deny of service was exactly the time configured as the "timer_interval" parameter of "usrloc" module. When changing the parameter, problem rythm changes as well. What we did so far: - Check DNS and MySQL performances - Moved the number of childs from 6 to 9 - Changed the "timer_interval" ("usrloc" module) from 60 to 900 - Stopped the "natping" feature ("nathelper" module) as it impacted the service as well. Please let me know if the problem has already been observed and what would be the best way to go deeper in the troubleshooting. I need to solve that as soon as possible: some of our users higly suffer of random REGISTER not beeing taken into account. Sincerely, Igor

1 1

Unforcing RTPProxy for a Cancel
by Joe Hart 24 Nov '10

24 Nov '10

I'm trying to figure out if there is some way to identify a call for which an rtpproxy session has been set up when the call is cancelled. I can't check the flag I set for the call, nor can I check the route param I set (which is what I'm doing to figure out when to unforce the media stream for a BYE). If this is not possible, is there any danger in calling unforce_rtp_proxy() for all calls, regardless of whether media proxying has been set up for the call or not? -- Joe Hart Voice Systems Integrator Evariste Systems LLC 1170 Peachtree Street 12th Floor, Suite 1200 Atlanta, GA 30309 Tel: +1-678-954-0670 Fax: +1-404-961-1892 Web : http://www.evaristesys.com/

3 2

How to relay to ITSP or secure gateway.
by Johny Kadarisman Kwan 24 Nov '10

24 Nov '10

Hi there, Is there a way to relay call to secure gateway or ITSP. ie, invite being challange to provide authorization (username/password) Could someone please give me some advice if this is possible. Thanks, Jkwan

2 3

TCP Children and Connection Handling
by Jijo 24 Nov '10

24 Nov '10

Hi All, I'm facing an issue with TCP connection from Proxy(kamailio) to a SIP server on a load test, where kamailio is not processing the message fast enough and which leads socket buffer getting filled up. I have increased the tcp_rd_buf_size but that really didn't help. According to my understanding the each TCP connection is assigned to a TCP children, and TCP children will read until it there is no data for few seconds and return the connection to tcp main process. In this case the TCP connection is to the SIP server which always have some data due to periodic SIP ping ,registration refresh and calls etc. So i believe this connection will be hold always by one children and since that children is processing the message sequentially, it might not be possible to increase the performance on this connection. My question is, If my understanding is correct How do we increase the performance for a particular TCP connection? Does Kamailio has some mechanism to distribute the message from a single TCP connection to different child, when it is overloaded? What is the best way to solve this issue? Thanks in advance. Jijo

1 0

avp_db_query returning wrong data
by Jijo 23 Nov '10

23 Nov '10

Hi All, While doing 5 REGISTER/second, i observed that that avp_db_query is returning data from a different db entry. This happens only with TCP with more than 1 tcp_children. it works fine with UDP. It also work with TCP with tcp_children as 1. Is there any relation between the TCP connections and Postgres in kamailio. I'm using kamilio 3.1.0. How should i debug this issue?? What are the areas need to look? Thanks Jijo

2 1

SIP Routing Logic in Lua
by Daniel-Constantin Mierla 22 Nov '10

22 Nov '10

Hello, during last days I spent some time to extend the native API exported to Lua. Many more functions exported by core and modules can be called from embedded Lua scripts. Note that you get also access to psedo-variable operations and you can call all functions exported by modules that have no fixup pretty safe, via sr.modf(...), without a need to be exported natively. I made an easy-to-do tutorial where all the SIP routing logic is implemented in a Lua script (including authentication, accounting, registrar, user location). You can read it at: http://asipto.com/u/h Therefore, if the configuration file language is not offering everything you need to route your SIP traffic, look at app_lua module and its API, it is a real option right now. Lua is a small and fast embeddable language, the interpreter is linked to and loaded by Kamailio at statup, therefore the performance penalty is not significant (Lua project site is: http://www.lua.org). It is also popular among other SIP telephony projects. Any kind of feedback is appreciated! Cheers, Daniel -- Daniel-Constantin Mierla Kamailio (OpenSER) Advanced Trainings Nov 22-25, 2010, Berlin, Germany Jan 24-26, 2011, Irvine, CA, USA http://www.asipto.com

6 9

Nuno Ribeiro wants to stay in touch on LinkedIn
by Nuno Ribeiro via LinkedIn 22 Nov '10

22 Nov '10

LinkedIn ------------Nuno Ribeiro requested to add you as a connection on LinkedIn: ------------------------------------------ Luis, I'd like to add you to my professional network on LinkedIn. - Nuno Ribeiro Accept invitation from Nuno Ribeiro http://www.linkedin.com/e/-y8k3ym-ggtfgz8y-47/XkppUi8mK5TI9VJsZIpnfBovln4Su… View invitation from Nuno Ribeiro http://www.linkedin.com/e/-y8k3ym-ggtfgz8y-47/XkppUi8mK5TI9VJsZIpnfBovln4Su… ------------------------------------------ Why might connecting with Nuno Ribeiro be a good idea? Nuno Ribeiro's connections could be useful to you: After accepting Nuno Ribeiro's invitation, check Nuno Ribeiro's connections to see who else you may know and who you might want an introduction to. Building these connections can create opportunities in the future. -- (c) 2010, LinkedIn Corporation

1 0

Double-quote with t_uac_dlg
by Kévin L'heveder 22 Nov '10

22 Nov '10

Hi, I have some troubles to send via t_uac_dlg a REGISTER method with an authorization field cause the values like digest, realm...are containing between double-quotes and that produce a parse error in kamailio. I didn't find how can i escape those double-quotes to prevent from this error. Here's the error logged: Nov 22 15:11:07 [14258] DBG:mi_datagram:mi_datagram_parse_node: we have a quoted value, "From: <sip:131@192.168.40.150>To: <sip:131@192.168.40.150>Contact: <sip:131@192.168.40.210:53000>Authorization: Digest username="131", realm="Asterisk/CM-YAHSAT", algorithm=MD5, uri="sip:192.168.40.202", nonce="5c87d7ed", response="fc126aadd3ba6b6ffbf38aea6be02122"Call-ID: b1ab82011346ff36(a)192.168.40.101CSeq: 10036 REGISTERExpires: 4294967295"Nov 22 15:11:07 [14258] DBG:mi_datagram:mi_datagram_parse_node: " found p is "131", realm="Asterisk/CM-YAHSAT", algorithm=MD5, uri="sip:192.168.40.202", nonce="5c87d7ed", response="fc126aadd3ba6b6ffbf38aea6be02122"Call-ID: b1ab82011346ff36(a)192.168.40.101CSeq: 10036 REGISTERExpires: 4294967295"Nov 22 15:11:07 [14258] DBG:mi_datagram:mi_datagram_parse_node: we have reached the end of attr value, p is "131", realm="Asterisk/CM-YAHSAT", algorithm=MD5, uri="sip:192.168.40.202", nonce="5c87d7ed", response="fc126aadd3ba6b6ffbf38aea6be02122"Call-ID: b1ab82011346ff36(a)192.168.40.101CSeq: 10036 REGISTERExpires: 4294967295"Nov 22 15:11:07 [14258] DBG:mi_datagram:mi_datagram_parse_node: attr value <From: <sip:131@192.168.40.150>To: <sip:131@192.168.40.150>Contact: <sip:131@192.168.40.210:53000>Authorization: Digest username=> foundNov 22 15:11:07 [14258] ERROR:mi_datagram:mi_datagram_parse_node: didn't find newline case1 Nov 22 15:11:07 [14258] ERROR:mi_datagram:mi_datagram_parse_node: parse error around 1Nov 22 15:11:07 [14258] ERROR:mi_datagram:mi_datagram_parse_tree: parse error!Nov 22 15:11:07 [14258] ERROR:mi_datagram:mi_datagram_server: failed to parse the MI tree regards,Koon

1 0

SCTP multihoming support in Kamailio
by mosbah abdelkader 19 Nov '10

19 Nov '10

Hello, Does Kamailio supports SCTP multihoming?

2 1

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sr-users November 2010