sr-users September 2016

sr-users@lists.kamailio.org

87 participants
130 discussions

Accessing cached database table
by Daniel W. Graham 28 Sep '16

28 Sep '16

Is there a way to access a cached database table from the config file, without using a function from a module? Example - Lookup ip_addr from 'address' table or src_ip from 'trusted' table based on the 'tag' column. No function exists in permissions module to do this, but running 'kamctl address show ' or 'kamctl trusted show ', show that the tables along with tag column are cached. Thanks! -Dan

2 2

invalid sendtoparameters
by Linux Vince 27 Sep '16

27 Sep '16

I am getting this error on every outgoing request. Below are log entries i found Sep 27 22:09:06 centos1 /usr/sbin/kamailio[22421]: ERROR: <core> [udp_server.c:550]: udp_send(): sendto(sock,0x7fb76f5da5e0,1568,0, 10.3.4.2:5060,16): Invalid argument(22) Sep 27 22:09:06 centos1 /usr/sbin/kamailio[22421]: CRITICAL: <core> [udp_server.c:555]: udp_send(): invalid sendtoparameters#012one possible reason is the server is bound to localhost and#012attempts to send to the net Sep 27 22:09:06 centos1 /usr/sbin/kamailio[22421]: ERROR: <core> [forward.h:201]: msg_send_buffer(): udp_send failed SNDTO values are SNDTO ,10.3.4.2 PORT 5060 I have confirmed the PID and it is bound to my public IP 22417 main process - attendant 22418 udp receiver child=0 sock=10.3.4.1:5060 22419 udp receiver child=1 sock=10.3.4.1:5060 22420 udp receiver child=2 sock=10.3.4.1:5060 22421 udp receiver child=3 sock=10.3.4.1:5060 22422 udp receiver child=4 sock=10.3.4.1:5060 22423 udp receiver child=5 sock=10.3.4.1:5060 22424 udp receiver child=6 sock=10.3.4.1:5060 22425 udp receiver child=7 sock=10.3.4.1:5060 22426 udp receiver child=0 sock=127.0.0.1:5060 22427 udp receiver child=1 sock=127.0.0.1:5060 22428 udp receiver child=2 sock=127.0.0.1:5060 22429 udp receiver child=3 sock=127.0.0.1:5060 22430 udp receiver child=4 sock=127.0.0.1:5060 22431 udp receiver child=5 sock=127.0.0.1:5060 22432 udp receiver child=6 sock=127.0.0.1:5060 22433 udp receiver child=7 sock=127.0.0.1:5060 22434 slow timer 22435 timer 22436 secondary timer 22437 ctl handler 22438 MI FIFO 22439 WEBSOCKET KEEPALIVE 22440 tcp receiver (generic) child=0 22441 tcp receiver (generic) child=1 22442 tcp receiver (generic) child=2 22443 tcp receiver (generic) child=3 22444 tcp receiver (generic) child=4 22445 tcp receiver (generic) child=5 22446 tcp receiver (generic) child=6 22447 tcp receiver (generic) child=7 22448 tcp main process How do i identify the issue ?

1 1

SIREMIS MANUAL
by Carlyle Edwards 27 Sep '16

27 Sep '16

Hi, is there a manual for SIREMIS?

2 1

Kamailio IMS NAT issue: PRACK/ACK RURI changing in P-CSCF
by Owais 26 Sep '16

26 Sep '16

Hi all, My scenario is as follows: I have All the CSCFs on the same IP using different ports. P-CSCF advertises a public IP. Rest of the nodes including I-CSCF and S-CSCF listen local only. Behavior: When an ACK or PRACK goes from P-CSCF to S-CSCF, the RURI changes such that alias parameter is removed. Hence, P-CSCF ends up sending PRACK and ACK on private IP of UE. Here's what the config looks like: Any hints? -- View this message in context: http://sip-router.1086192.n5.nabble.com/Kamailio-IMS-NAT-issue-PRACK-ACK-RU… Sent from the Users mailing list archive at Nabble.com.

2 2

26 Sep '16

Hello, We're trying to get our Asterisk test server to REGISTER with Kamailio. The first attempts are ok, but once the nonce timer is exceeded Kamailio starts rejecting the REGISTER requests from Asterisk, due to the nonce being expired. The auth_check function is the one returning error -4. Is this an issue in Asterisk or Kamailio? Which component is responsible for generating a new nonce value? I'm a bit confused regarding the flow of SIP REGISTER. I hope someone could help me out on this. Thanks! Regards, Grant Bagdasarian

2 2

Config changes needed from 4.4.2 to 4.4.3 (and a bug)
by Sebastian Damm 26 Sep '16

26 Sep '16

Hi, Kamailio release 4.4.3 was tagged as a "bug fix release", no config changes should be needed. However, we had to change two things in our config file to get 4.4.3 running. I thought, I might share those on the list. 1) Defines must not have '-' in the names. In 4.4.2 we had a Define like this: #!define NO-FRAUDCHECK This threw an error when trying to restart with 4.4.3. Replacing it with #!define NO_FRAUDCHECK fixed the problem. 2) Module Order problems. We introduced the usage of http_async_client module a few weeks ago, and this worked perfectly. However, 4.4.3 complained that the pv module was not available before loading http_async_client. After moving up the pv module above http_async_client, everything worked again. 3) There's a bug in uac_auth function. I've opened an issue for that: https://github.com/kamailio/kamailio/issues/797 Best Regards, Sebastian

2 1

Textops replace question
by Igor Olhovskiy 26 Sep '16

26 Sep '16

Hi! I’m trying to use replace function, but got strange results. Idea - modify Contact header What I got as start packet. (202 Accepted on onreply_route) … Contact: <sip:*97@10.0.20.81:5060> … I give a command replace("Contact: <.*>», "Contact: <" + $fu + ">"); $fu = sip:11@master.rufan.at And, as a result I got Contact: <sip:11@master.rufan.at>sip:*97@10.0.20.81:5060 Why it’s adding old Contact part at the end? What can cause this? On onreply_route I have only this command. Thanks! -- Best regards, Igor

3 4

Dialog sharing between Kamailio servers
by Michael Jepson 26 Sep '16

26 Sep '16

Hi all, I am trying to limit the concurrent calls of a customer, but we have multiple Kamailio servers in our platform. I have the dialog module up and running and it is storing its data in a database, but when I use get_profile_size, it will only return the number of dialogs in that profile for the current machine, it does not add the others. How can I get Kamailio to add the others, i.e. how can I get Kamailio to consult the database to get the correct size. Now, Kamailio seems to only write to the database, but not read from it. Best regards, MICHAEL JEPSON

2 1

Load balancing with Kamailio
by NITESH BANSAL 26 Sep '16

26 Sep '16

Hello, I'm planning on doing some smart load balancing with Kamailio. We have a distributed network, with multiple Kamailio boxes in different locations serving as Ingress SBC, these Kamailio boxes are the entry point for a SIP call and then they route the call to a pre-configured Asterisk boxes. I want to move away from this, I would like these Kamailios to be able to distribute the traffic to Asterisk boxes based on the actual load on these boxes, the goal is to be more dynamic? Is there any Kamailio module which could do that? Do I need to integrate some other tool(Homer etc) with Kamailio to achieve this? Any suggestions are welcome.

3 3

LCR routing, and finaly route to media gateway if not found
by Loic Chabert 26 Sep '16

26 Sep '16

Hello List, I'm finishing my implementation of LCR with kamailio for outgoing calls but one use case does not work. Let me explain: - I have some sbc for one destination. If one destination fail, kamailio try to second one etc.. - If no SBC is available for this destination (for exemple, all are down), i want to send my call to an error server (asterisk), play an error sound. To accomplish this, i re-write the RURI: "sip:error1@errorserver.local", and launch RELAY route. But kamailio dont make a DNS query to find IP of "errorserver.local", only change RURI and try to send to the last LCR gateway. I have also try to add a new branch, but same result... Why kamailio do not make a new DNS query ? *route[RELAY] { #if (is_method("INVITE")) { # if(!t_is_set("failure_route")) t_on_failure("MANAGE_FAILURE"); #} if (!t_relay()) { sl_reply_error(); } exit;}route[NOTFOUND]{ $ru = "sip:error1@errorserver.local"; xlog("L_WARN", "[$ci]|$si|Routing this call to $ru (error server)\n"); append_branch($ru); route(RELAY);}route[LCR] { xlog("L_INFO", "[$ci]|$si|Loading gateways...\n"); if (!load_gws(1)) { xlog("L_ERR", "[$ci]|$si|Can't load LCR gateways\n"); sl_send_reply("503", "Unable to load gateways"); exit; } else { $var(i) = 0; while(is_avp_set("$(avp(i:709)[$var(i)])")) { xlog("L_INFO", "[$ci]|$si|This gateway was found: gw_uri_avp[$var(i)]=$(avp(i:709)[$var(i)]) \n"); $var(i) = $var(i) + 1; }; if(is_avp_set("$avp(i:709)")) { xlog("L_INFO", "[$ci]|$si|Trying gateway ‘$avp(i:709)’\n"); } else { xlog("L_INFO", "[$ci]|$si|No more gateways. Goto route NOTFOUND...\n"); route(NOTFOUND); }; # try the first matched gateway if (next_gw()) { xlog("L_INFO", "[$ci]|$si|New request URI built: $ru . Relaying it (and arming backup destination if needed)."); # Route to failure for failover t_on_failure("lcrfailure"); route(RELAY); } else { xlog("L_INFO", "[$ci]|$si|No more gateways (after next_gw()). Goto route NOTFOUND..."); route(NOTFOUND); }; }; exit;}failure_route[lcrfailure] { # the previous gateway is no good if (t_check_status("408|50[34]")) { xlog("L_WARN", "[$ci]|$si|Entering in entering failure_route[lcrfailure]. Error code: $T_reply_code \n"); if(is_avp_set("$avp(i:709)")) { xlog("L_INFO", "[$ci]|$si|Trying gateway ‘$avp(i:709)’\n"); } else { xlog("L_ERR", "[$ci]|$si|AVP is not set\n"); }; if (next_gw()) { xlog("L_INFO", "[$ci]|$si|New request URI built: $ru . Relaying it (and arming backup destination if needed)."); # Route to failure for failover t_on_failure("lcrfailure"); route(RELAY); } else { xlog("L_INFO", "[$ci]|$si|No more gateways (after next_gw()). Goto route NOTFOUND..."); route(NOTFOUND); }; exit; };}* Many thanks, Regards.

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sr-users September 2016