sr-users June 2014

sr-users@lists.kamailio.org

86 participants
145 discussions

Kamailio and Asterisk
by Carlos Rangel 11 Jun '14

11 Jun '14

Hello Trying to do my first Kamailio and Asterisk integration following the tutorial http://kb.asipto.com/asterisk:realtime:kamailio-4.0.x-asterisk-11.3.0-astdb I am using Centos though. Everything goes well except when trying to create the kamailio DB. The core tables cannot be created. Any ideas how to solve this problem??. Thanks CR [root@gt-ev-i08 kamailio-4.1.3]# /usr/local/sbin/kamdbctl create MySQL password for root: INFO: test server charset INFO: creating database kamailio ... INFO: granting privileges to database kamailio ... INFO: creating standard tables into kamailio ... /usr/local/lib64/kamailio//kamctl/kamdbctl.mysql: line 264: /usr/local/share/kamailio//mysql/#-create.sql: No such file or directory ERROR: Creating core tables failed at #!

1 0

kamailio and app_python
by Victor Seva 11 Jun '14

11 Jun '14

Hi, is there any way to return values from a call to python_exec function orther than the default returned integer? Following code generates this error: Oct 1 09:08:23 zskio /usr/sbin/kamailio[21789]: ERROR: app_python [python_support.c:38]: python_exec2: Unhandled exception in the Python code: Oct 1 09:08:23 zskio /usr/sbin/kamailio[21789]: ERROR: app_python [python_support.c:78]: #011RuntimeError: no such function if (!python_exec("get_provider", $(var(clean_uri){s.prefixes}))) { xlog("L_ERR","Can not choose a provider for $rU\n"); sl_send_reply("503","Can not choose a provider for $rU"); exit; } def get_provider(self, msg, param): # snipped code... result = self.util.get_provider(prefixes, position, mode) if result is not None: LM_ERR("mode: %s position: %d result: %s" % (mode, position, result)) # this raises error msg.call_function('rewritehost', result['provider']['ip']) return 1 return -1 I tried to use headers as transport but this simple code does not work: Oct 1 09:45:31 zskio /usr/sbin/kamailio[22303]: ERROR: <script>: No header if (!is_present_hf("X-Test-header")) { xlog("L_ERROR", "No header\n"); } else { xlog("L_INFO", "Header added\n"); } def test_set_header(self, msg): msg.call_function('append_hf', 'X-Test-header: test\r\n') return 1 Thanks in advance.

4 6

many-to-one network topology hide with TOPOH
by Maciej Marczyński 11 Jun '14

11 Jun '14

Hi Everyone, recently I'm playing around with the topoh module but I couldn't find the functionality I'm looking for. I'd like to hide my network topology before the end-user but not only the IPs of all VIA and RR but also the amount of hops - so to map 4 VIAs to 1 different VIA etc. The idea is to reduce the size of packets as some of my subscribers suffers from packets fragmentation. Do you think it's possible now or maybe easy to implement? Best Regards, Maciej

2 1

Routing logic and record-routing
by DURECU, OLIVIER (OLIVIER) 11 Jun '14

11 Jun '14

Hello all, There is something I can't understand using Kamailio as proxy to route SUBSCRIBE/NOTIFY dialogs between a client and a server I do record_route() on the first SUBSCRIBE received by Kamailio The next SUBSCRIBE is well handled by Kamailio in the [WITHIN_DIALOG] bloc but the 200/OK no more contains record-route header So the 3rd SUBSCRIBE no more sets a relevant route and Kamailio rejets it with a 404 ? How to proceed so that 200/Ok within dialog still contains Record-route header ? Here are the piece of routing logic involved if (is_method("PUBLISH|SUBSCRIBE")) { record_route(); $ru = "sip:192.168.0.250:6070"; route(RELAY); exit; } And the as-is route[WITHINDLG] function route[WITHINDLG] { if (has_totag()) { # sequential request withing a dialog should # take the path determined by record-routing if (loose_route()) { #!ifdef WITH_WEBSOCKETS if ($du == "") { if (!handle_ruri_alias()) { xlog("L_ERR", "Bad alias <$ru>\n"); sl_send_reply("400", "Bad Request"); exit; } } #!endif route(RELAY); } Thanks for your help Olivier

2 1

kamailio + rtpengine: damaged media (Red Hat Linux)
by Alexey Rybalko 11 Jun '14

11 Jun '14

Hello to all! I encountered strange issue with rtpengine: voice during a call is heard like random binary data. (Video freezes during a video call). *It goes fine during 2-3 seconds* before the media flow becomes glitched. It's related to SRTP calls only (RTP-SRTP, SRTP-RTP, SRTP-SRTP). RTP calls through mediaproxy are ok. Used platform: Red Hat Linux 6.4, rtpengine (3.3.0 ?, latest form GitHub), kamailio (4.2.0-dev6) + websocket module. I have successfully installed (manually) mediaproxy daemon, Kamailio module, iptables library and kernel module. Kernel module was loaded (lsmod lists it, there are file in /proc/mediaproxy/0) and iptables were configured as expected. Mediaproxy log looks fine except of a few suspicious messages "No support for kernel packet forwarding available". I'm not sure they are related to the mentioned problem but I would like to have working kernel support. Attached example is for SIP-to-websocket call. rtpengine confguration is: *KERNEL=yes TABLE=0 FALLBACK=no RTP_IP=10.xx.xx.xxLISTEN_NG=127.0.0.1:2223 <http://127.0.0.1:2223> * That would be great if you make any suggestions/comments on this issue. Need to mention that I haven't saw such problems on Debian Linux. Couple of other questions: - What does message "Call-ID to delete not found" means? - "x_tables" is mentioned as required in the documentation for rtpengine kernel module (xt_MEDIAPROXY). Seems to be for Debian only. Is it required for other distros? with best regards, Alexey

2 4

Location issue
by Igor Potjevlesch 11 Jun '14

11 Jun '14

Hello, I'm running Kamailio 4.1.3 and having a strange issue. After a restart of Kamailio, some username are still in memory and updated accordingly with usual re-REGISTER flow. But the entries in location db is deleted. Kamailio tries to do a SQL UPDATE which fails because of that. So, for each username which are not in location DB, I must do a "kamctl ul rm" and wait for the next REGISTER. The new REGISTER will challenge the UAC for a new Authorization which should result in an INSERT INTO instead of an UPDATE. Can someone help me to solve this? Regards, Igor.

2 6

Kamailio and Freepbx Integration
by Carlos Rangel 10 Jun '14

10 Jun '14

Hello I am working on a project which looks for integration between Kamailio with Freepbx. We want to have remote sip users connected to the Freepbx server which is behind a NAT Firewall. The remote users are dynamic so IP addresses are always changing so we want Kamailio to authenticate this users and then fREEPBX to handle the call flow. I just started and have done a few trials without success based on the Kamailio-Asterisk integration tutorials on the documentation page. From other post I have read I know the following: - Kamailio and Asterisk can be on the same or different servers. I would look for a integrating with different servers. - Freepbx does not use realtime, instead uses the .conf files however the user information is contained on the database tables, I just need to select the correct table and configure Kamailio to get the user information from there. - Since the system will work behind a Nat firewall I assume that need to include the -- #!define WITH_NAT--- functionality on the kamailio.cfg. - Freepbx or Asterisk should not ask for authentication from Kamailio--- although I am not sure how exactly to accomplish this. I am writing this post just to see if anyone has had a previous experience to share or someone can give me an insight about the tricks on this. I will be working on this on the next days and share my experiences. Thanks a lot for your help. Carlos Rangel

1 0

Crash Kamailio 4.1 (qm_debug_frag(): BUG: qm_*: prev. fragm. tail overwritten)
by Andrés Souto 10 Jun '14

10 Jun '14

Hello, Kamailio crashes with this message: May 29 12:03:45 kamfree-manager kamailio[8705]: : <core> [mem/q_malloc.c:159]: qm_debug_frag(): BUG: qm_*: prev. fragm. tail overwritten(c0c0c000, abcdefed)[0x7ff5a5031a98:0x7ff5a5031ac8]! May 29 12:03:45 kamfree-manager kamailio[8697]: ALERT: <core> [main.c:775]: handle_sigs(): child process 8705 exited by a signal 6 May 29 12:03:45 kamfree-manager kamailio[8697]: ALERT: <core> [main.c:778]: handle_sigs(): core was generated The problem is produced in this line of the script: $rU = $dbr(ra=>[0,0]); I'm using last commit in 4.1 branch (ad5235229f59ba5d1f4216e144291e110fee0211) on Debian wheezy. The backtrace: #0 0x00007ff5a538b475 in raise () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007ff5a538e6f0 in abort () from /lib/x86_64-linux-gnu/libc.so.6 #2 0x0000000000546a00 in qm_debug_frag (qm=0x7ff5a4f58010, f=0x7ff5a5031a98) at mem/q_malloc.c:161 #3 0x000000000054796d in qm_malloc (qm=0x7ff5a4f58010, size=1024, file=0x5c9ec1 "<core>: action.c", func=0x5cb1d8 "do_action", line=832) at mem/q_malloc.c:386 #4 0x000000000041affa in do_action (h=0x7fff810cd2b0, a=0x7fff810cd390, msg=0x7ff5a502ed28) at action.c:832 #5 0x00007ff5a2295d88 in pv_set_ruri_user (msg=0x7ff5a502ed28, param=0x7ff5a4fb3750, op=254, val=0x7fff810cd4e0) at pv_core.c:2073 #6 0x0000000000467bbf in lval_pvar_assign (h=0x7fff810d0200, msg=0x7ff5a502ed28, lv=0x7ff5a501ea00, rv=0x7ff5a501f110) at lvalue.c:362 #7 0x00000000004680a5 in lval_assign (h=0x7fff810d0200, msg=0x7ff5a502ed28, lv=0x7ff5a501ea00, rve=0x7ff5a501f108) at lvalue.c:410 #8 0x0000000000423fec in do_action (h=0x7fff810d0200, a=0x7ff5a501eb68, msg=0x7ff5a502ed28) at action.c:1478 #9 0x0000000000424d70 in run_actions (h=0x7fff810d0200, a=0x7ff5a5013ee0, msg=0x7ff5a502ed28) at action.c:1599 #10 0x000000000041c18d in do_action (h=0x7fff810d0200, a=0x7ff5a5020a10, msg=0x7ff5a502ed28) at action.c:1090 #11 0x0000000000424d70 in run_actions (h=0x7fff810d0200, a=0x7ff5a5020a10, msg=0x7ff5a502ed28) at action.c:1599 #12 0x000000000041c18d in do_action (h=0x7fff810d0200, a=0x7ff5a5020e50, msg=0x7ff5a502ed28) at action.c:1090 #13 0x0000000000424d70 in run_actions (h=0x7fff810d0200, a=0x7ff5a50119b0, msg=0x7ff5a502ed28) at action.c:1599 #14 0x000000000041a2b7 in do_action (h=0x7fff810d0200, a=0x7ff5a4fd3fc0, msg=0x7ff5a502ed28) at action.c:715 #15 0x0000000000424d70 in run_actions (h=0x7fff810d0200, a=0x7ff5a4fd2800, msg=0x7ff5a502ed28) at action.c:1599 #16 0x0000000000422c70 in do_action (h=0x7fff810d0200, a=0x7ff5a4fd7af0, msg=0x7ff5a502ed28) at action.c:1235 #17 0x0000000000424d70 in run_actions (h=0x7fff810d0200, a=0x7ff5a4fd1ed8, msg=0x7ff5a502ed28) at action.c:1599 #18 0x000000000041c18d in do_action (h=0x7fff810d0200, a=0x7ff5a4fd7d10, msg=0x7ff5a502ed28) at action.c:1090 #19 0x0000000000424d70 in run_actions (h=0x7fff810d0200, a=0x7ff5a4fcf1d8, msg=0x7ff5a502ed28) at action.c:1599 #20 0x000000000041a2b7 in do_action (h=0x7fff810d0200, a=0x7ff5a4fb7d88, msg=0x7ff5a502ed28) at action.c:715 #21 0x0000000000424d70 in run_actions (h=0x7fff810d0200, a=0x7ff5a4fb6b68, msg=0x7ff5a502ed28) at action.c:1599 #22 0x000000000041c18d in do_action (h=0x7fff810d0200, a=0x7ff5a4fb9838, msg=0x7ff5a502ed28) at action.c:1090 #23 0x0000000000424d70 in run_actions (h=0x7fff810d0200, a=0x7ff5a4faf5a0, msg=0x7ff5a502ed28) at action.c:1599 #24 0x0000000000425524 in run_top_route (a=0x7ff5a4faf5a0, msg=0x7ff5a502ed28, c=0x0) at action.c:1685 #25 0x00000000004a6fdb in receive_msg ( buf=0x921920 "INVITE sip:2000@vpbx2.ur SIP/2.0\r\nVia: SIP/2.0/UDP 192.168.0.101;rport;branch=z9hG4bK14cFrXZ0N53jS\r\nMax-Forwards: 67\r\nFrom: \"1000\" <sip:1000@vpbx1.ur>;tag=FjmFN79ZrXH0e\r\nTo: <sip:2000@vpbx2.ur>\r\nCall-"..., len=1061, rcv_info=0x7fff810d04b0) at receive.c:212 #26 0x000000000053c544 in udp_rcv_loop () at udp_server.c:536 ---Type <return> to continue, or q <return> to quit--- #27 0x000000000046ee54 in main_loop () at main.c:1617 #28 0x0000000000471df4 in main (argc=3, argv=0x7fff810d07e8) at main.c:2533 Complete log: http://pastebin.com/YZirUkfe Thanks. Regards, -- *Andrés Souto* VoIP Engineer @ Quobis <http://www.quobis.com/> | e: andres.souto(a)quobis.com | t: +34902999465

2 8

re-use Expires from 200 OK
by Daniel Ciprus 10 Jun '14

10 Jun '14

Is there any way to extract Expires from 200 OK (response to REGISTER) ? I will need to re-use this value in 3rd party registration being sent to application server. Thanks for any hints .. -- Daniel Ciprus Integration engineer http://www.acision.com 9954 Mayland Dr Suite 3100 Richmond, VA 23233 USA T: +1 804 762 5601 E: daniel.ciprus(a)acision.com<mailto:daniel.ciprus@acision.com> ________________________________ This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you for understanding.

2 1

Iptel.org cannot make call
by Tommy Yan 09 Jun '14

09 Jun '14

Dear Sir/Madam, We setup the Linksys SPA3000 to make a call via IPTEL.ORG in between my family members around the world. But recently, we found out that we cannot dial out. So, would you please help to check this ? Regards, Tommy.

2 1

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sr-users June 2014