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37562 discussions

Duplicate values in SDP
by VOIP Tests 16 May '14

16 May '14

Hello, Can some one let me know the reason that there are these duplicate values in the SDP ( o, c, m, nortpproxy)? Our server was working with kamailio and asterisk on the same machine and had no problem. When we separated kamailio and asterisk on different servers and added the dispatcher module I see this error because of which there is not audio from an incoming PSTN call. 2014/05/15 18:55:19.972332 172.10.30.8:5060 -> 66.136.17.30:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 66.136.17.30:5060 ;rport=5060;branch=z9hG4bK1sansay1225318698rdb6244. Record-Route: <sip:54.108.18.75;lr=on;ftag=sansay1225318698rdb6244>. Record-Route: <sip:sansay1225318698rdb6244@66.136.17.30:5060 ;lr;transport=udp>. From: <sip:xxxxxx85342@66.136.17.30>;tag=sansay1225318698rdb6244. To: <sip:12142349395@54.108.18.75>;tag=as3414811d. Call-ID: 537507353-0-1838374200(a)64.136.174.226. CSeq: 1 INVITE. Server: Asterisk PBX 1.8.17.0. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH. Supported: replaces, timer. Session-Expires: 1800;refresher=uac. Contact: <sip:xxxxxxx9395@172.10.30.5:5080>. Content-Type: application/sdp. Content-Length: 385. . v=0. o=root 1739301191 1739301191 IN IP4 54.108.18.7554.108.18.7554.108.18.75. s=Asterisk PBX 1.8.17.0. c=IN IP4 54.108.18.7554.108.18.7554.108.18.75. t=0 0. m=audio 388503885038850 RTP/AVP 0 8 101. a=rtpmap:0 PCMU/8000. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20. a=sendrecv. a=nortpproxy:yes. a=nortpproxy:yes. a=nortpproxy:yes. Thank you for the help. Arun

1 0

DB select htable:mod-init doesn't work
by Sebastian Damm 15 May '14

15 May '14

Hi, I'm trying to fill a hash table on startup in the htable:mod-init event route. But it doesn't work. Kamailio doesn't start at all, but doesn't print out an error in the log. This is what the route looks like: event_route[htable:mod-init] { xlog("L_NOTICE", "Loading Carrier domains into Hash table.\n"); sql_query("ser", "select domain_name from carrier_domains", "domains"); xlog("L_NOTICE", "Loaded from database...\n"); while($var(i)<$dbr(domains=>cols)) { xlog("L_NOTICE", "Entry: $dbr(domains=>[$var(i),0])\n"); $sht(carrierips=>$var(i)) = $dbr(domains=>[$var(i),0]); $var(i) = $var(i) + 1; } } Of course, the necessary parameters are set. modparam("htable", "htable", "carrierips=>size=6") modparam("sqlops","sqlcon","ser=>mysql://user:password@127.0.0.1/ser") In the log I see the following: May 15 11:25:33 linux /usr/sbin/kamailio[20872]: NOTICE: <script>: Loading Carrier domains into Hash table. As you can see, there should be a lot more output, but nothing happens anymore after that. In ngrep I see other queries going to the same database from other modules, but my query from the event route is never executed. Am I missing something? Best Regards, Sebastian

4 8

Play sound during call waiting with kamailio
by Igor Potjevlesch 15 May '14

15 May '14

Hello, Is it possible to use kamailio 4.1 to play sound for the caller during call waiting? I saw the module "mohqueue" but i m not sure that the called have notification when a call is in a queue. Regards,

1 0

q_malloc crash
by Juha Heinanen 15 May '14

15 May '14

i just noticed that my proxy had crashed on invite request from attacker: May 14 22:03:06 sars /usr/sbin/sip-proxy[10932]: INFO: INVITE <tel:004412127921\ 94> by untrusted <sip:210.125.64.233> from <210.125.64.233> May 14 22:03:06 sars /usr/sbin/sip-proxy[10932]: : <core> [mem/q_malloc.c:159]:\ qm_debug_frag(): BUG: qm_*: prev. fragm. tail overwritten(c0c0c000, abcdefed)[\ 0xb70f6a64:0xb70f6a7c]! May 14 22:03:08 sars /usr/sbin/sip-proxy[11014]: : <core> [pass_fd.c:293]: rece\ ive_fd(): ERROR: receive_fd: EOF on 24 May 14 22:03:08 sars /usr/sbin/sip-proxy[10913]: ALERT: <core> [main.c:775]: ha\ ndle_sigs(): child process 10932 exited by a signal 6 May 14 22:03:08 sars /usr/sbin/sip-proxy[10913]: ALERT: <core> [main.c:778]: ha\ ndle_sigs(): core was generated Program terminated with signal 6, Aborted. #0 0xb7782424 in __kernel_vsyscall () (gdb) where #0 0xb7782424 in __kernel_vsyscall () #1 0xb7616941 in raise () from /lib/i386-linux-gnu/i686/cmov/libc.so.6 #2 0xb7619d72 in abort () from /lib/i386-linux-gnu/i686/cmov/libc.so.6 #3 0x08179f86 in qm_debug_frag (qm=0xb6dea008, f=0xb70f6a64) at mem/q_malloc.c:161 #4 0x0817ac3a in qm_malloc (qm=0xb6dea008, size=48, file=0x81f3169 "<core>: action.c", func=0x81f42f0 "do_action", line=780) at mem/q_malloc.c:386 #5 0x0805e798 in do_action (h=0xbffc1ca0, a=0xbffc1d48, msg=0xb72c6928) at action.c:780 #6 0xb1c5ac1d in pv_set_ruri (msg=0xb72c6928, param=0xb6f75630, op=254, val=0xbffc1e0c) at pv_core.c:2019 #7 0xb1b5df59 in tel2sip (_msg=0xb72c6928, _uri=0xb6f75c70 "H\207\367\266\004", _hostpart=0xb6f75530 "\254y\367\266\004", _res=0xb6f75624 "\006") at checks.c:405 #8 0x0805fdf7 in do_action (h=0xbffc21e0, a=0xb6f77858, msg=0xb72c6928) at action.c:1117 #9 0x08067293 in run_actions (h=0xbffc21e0, a=0xb6f77858, msg=0xb72c6928) at action.c:1599 #10 0x080678e2 in run_actions_safe (h=0xbffc39ac, a=0xb6f77858, msg=0xb72c6928) at action.c:1664 #11 0x081015fe in rval_get_int (h=0xbffc39ac, msg=0xb72c6928, i=0xbffc2528, rv=0xb6f779fc, cache=0x0) at rvalue.c:924 #12 0x08103f83 in rval_expr_eval_int (h=0xbffc39ac, msg=0xb72c6928, res=0xbffc2528, rve=0xb6f779f8) at rvalue.c:1918 #13 0x0810416e in rval_expr_eval_int (h=0xbffc39ac, msg=0xb72c6928, res=0xbffc27c4, rve=0xb6f78360) at rvalue.c:1926 #14 0x0805fa26 in do_action (h=0xbffc39ac, a=0xb6f78820, msg=0xb72c6928) at action.c:1075 #15 0x08067293 in run_actions (h=0xbffc39ac, a=0xb6f78820, msg=0xb72c6928) at action.c:1599 #16 0x0805fca0 in do_action (h=0xbffc39ac, a=0xb6f788c4, msg=0xb72c6928) at action.c:1094 ---Type <return> to continue, or q <return> to quit--- #17 0x08067293 in run_actions (h=0xbffc39ac, a=0xb6f788c4, msg=0xb72c6928) at action.c:1599 #18 0x0805fc5f in do_action (h=0xbffc39ac, a=0xb6f78968, msg=0xb72c6928) at action.c:1090 #19 0x08067293 in run_actions (h=0xbffc39ac, a=0xb6f78968, msg=0xb72c6928) at action.c:1599 #20 0x0805e00d in do_action (h=0xbffc39ac, a=0xb6e7720c, msg=0xb72c6928) at action.c:715 #21 0x08067293 in run_actions (h=0xbffc39ac, a=0xb6e5161c, msg=0xb72c6928) at action.c:1599 #22 0x0805e00d in do_action (h=0xbffc39ac, a=0xb6e50238, msg=0xb72c6928) at action.c:715 #23 0x08067293 in run_actions (h=0xbffc39ac, a=0xb6e50238, msg=0xb72c6928) at action.c:1599 #24 0x0805fc5f in do_action (h=0xbffc39ac, a=0xb6e50bfc, msg=0xb72c6928) at action.c:1090 #25 0x08067293 in run_actions (h=0xbffc39ac, a=0xb6e4891c, msg=0xb72c6928) at action.c:1599 #26 0x0806797a in run_top_route (a=0xb6e4891c, msg=0xb72c6928, c=0x0) at action.c:1685 #27 0x080e2bcf in receive_msg ( buf=0x82f99e0 "INVITE tel:00441212792194 SIP/2.0\r\nVia: SIP/2.0/UDP 210.125.64.233;branch=z9hG4bK4KmbLm4c\r\nMax-Forwards: 69\r\nFrom: <sip:210.125.64.233>;tag=qua2A5c8s9VJZ\r\nTo: <tel:00441212792194>\r\nContact: <sip:210.1"..., len=1115, rcv_info=0xbffc3bb0) at receive.c:211 #28 0x081702cd in udp_rcv_loop () at udp_server.c:536 #29 0x080ad9a0 in main_loop () at main.c:1617 #30 0x080b098f in main (argc=17, argv=0xbffc3e64) at main.c:2533 perhaps due to a bug in tel2sip function. -- juha

2 6

Prevent missing BYE request
by Igor Potjevlesch 15 May '14

15 May '14

Hello, Here is the context: I use to terminate outgoing calls to a PSTN gateway. The gateway is able to detect asymmetric RTP on IP side and then ended the call after a configurable timer if asymmetric RTP is detected. I'm working on the integration of a VoIP Trunk with a wholesaler and I'm wondering how this behaviour can be transposed on full IP interconnection. The first step will be to use Kamailio as an SBC and start the RTPProxy for each session terminated on this wholesaler. Is there a similar mechanism on RTPProxy sides that can detect this particular call-flow and hang up the call? Thanks for your suggestions. Regards, Igor.

2 2

Wrong Via and RR header added in UDP2TCP scenario
by Sebastian Damm 15 May '14

15 May '14

Hi, we have a setup, where we have a TCP loadbalancer, which converts the requests from attached devices using TCP into UDP for the rest of our setup. This loadbalancer has a service IP, and additionally the host IP, it listens to different addresses. Example: Host IP is: 1.1.1.1 Service IP is: 2.2.2.2 Device is at: 5.5.5.5 Proxy: 9.9.9.9 Gateway: 8.8.8.8 Kamailio listen IPs: tcp:1.1.1.1:15060 (used just for XMLRPC querys) tcp:2.2.2.2:5060 udp:1.1.1.1:5062 udp:2.2.2.2:5060 The Host IP should only be used for some management functions, not for routing. We've had the problem at first, that when converting from TCP to UDP, Kamailio did not use the same IP but instead the first configured one. I got rid of that by using force_send_socket. Now I'm calling a registered device. Since the registered device is saved with a path, the request comes in via UDP with the following parameters: U 2014/05/13 16:15:31.225132 9.9.9.9:5060 -> 2.2.2.2:5060 INVITE sip:user@5.5.5.5:5060;uniq=F373C9746E87D6271688292199F83;transport=tcp SIP/2.0 Record-Route: <sip:9.9.9.9;lr> Record-Route: <sip:2.2.2.2;lr;ftag=as458ff869> Via: SIP/2.0/UDP 9.9.9.9;branch=z9hG4bK17ec.ea7c017baba4072b27c5b0b9daa23346.0 Route: <sip:2.2.2.2;lr;received=sip:5.5.5.5:4956%3Btransport%3Dtcp> Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bK17ec.7db07192e57ae94739d5c3e1444d7ef3.0 Via: SIP/2.0/UDP 8.8.8.8:5060;branch=z9hG4bK5ba05442 Up until now everything looks good. But this is what the loadbalancer sends out: T 2014/05/13 16:15:31.226987 2.2.2.2:5060 -> 5.5.5.5:4956 [A] INVITE sip:user@5.5.5.5:5060;uniq=F373C9746E87D6271688292199F83;transport=tcp SIP/2.0 Record-Route: <sip:1.1.1.1:15060;transport=tcp;r2=on;lr;ftag=as458ff869> Record-Route: <sip:2.2.2.2;r2=on;lr;ftag=as458ff869> Record-Route: <sip:9.9.9.9;lr> Record-Route: <sip:2.2.2.2;lr;ftag=as458ff869> Via: SIP/2.0/TCP 1.1.1.1:15060 ;branch=z9hG4bK17ec.99e285f5a9e03594d3f7ae6048d1868d.0 Via: SIP/2.0/UDP 9.9.9.9;branch=z9hG4bK17ec.ea7c017baba4072b27c5b0b9daa23346.0 Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bK17ec.7db07192e57ae94739d5c3e1444d7ef3.0 Via: SIP/2.0/UDP 8.8.8.8:5060;branch=z9hG4bK5ba05442 As you can see, the the packet is sent out through the correct socket. But in RR and Via header it advertises the other TCP socket. This breaks BYEs later on. Is there some way, I can influence, which IP and port Kamailio writes into those headers? Or is this a bug, that Kamailio doesn't check the sending socket correctly? Best Regards, Sebastian

3 6

Usrloc module issue
by aawaise 15 May '14

15 May '14

I went through usrloc page on kamailio site. Link given below. http://www.kamailio.org/docs/modules/3.1.x/modules_s/usrloc.html It states that the module keeps a user location table and provides access to the table to other modules. The module exports no functions that could be used directly from scripts. How can one extract value of domain from Location List ? -- View this message in context: http://sip-router.1086192.n5.nabble.com/Usrloc-module-issue-tp127715.html Sent from the Users mailing list archive at Nabble.com.

1 0

Kamailio does not start with #!define WITH_AUTH
by Arya Farzan 15 May '14

15 May '14

When the following lines are on top of my kamailio.cfg #!KAMAILIO #!define WITH_MYSQL #!define WITH_NAT #!define WITH_TLS #!define WITH_AUTH Kamailio does not start and prints out root@voip:/etc/kamailio# /etc/init.d/kamailio start [....] Starting Kamailio SIP server: kamailio:loading modules under /usr/lib/x86_64-linux-gnu/kamailio/modules/ Listening on udp: 127.0.0.1:5060 udp: 107.170.93.193:5060 tcp: 127.0.0.1:5060 tcp: 107.170.93.193:5060 tls: 127.0.0.1:5061 tls: 107.170.93.193:5061 Aliases: tls: voip:5061 tls: localhost:5061 tcp: voip:5060 tcp: localhost:5060 udp: voip:5060 udp: localhost:5060 [FAIL] already running ... failed! . ok But when I remove "#!define WITH_AUTH" it starts up. How can I find out what the problem is?

4 4

Domain Name of an online user from Location List
by aawaise 15 May '14

15 May '14

How can I pick domain name of an online user from Location List ? Which pseudo variable is to be used ?? I want to get the value of domain name and get it printed in logs. -- View this message in context: http://sip-router.1086192.n5.nabble.com/Domain-Name-of-an-online-user-from-… Sent from the Users mailing list archive at Nabble.com.

1 0

How to remove attribute from SDP ?
by Vitaliy Aleksandrov 14 May '14

14 May '14

Hello list, Can anybody suggest the way to remove a line/attribute from SDP that matches some pattern (regexp), some kind of "grep -v" for SDP ? I'm trying to remove unnecessary ICE candidates from the SDP body and only thing I know is the IP address of the candidate I need to remove. I was trying to use avp_subst() + set_body() or subst_body() but didn't get valid SDP. kamailio-3.2.4.

4 4

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