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37381 discussions

How to handle 302 redirects
by Trey Ormsbee 22 Jun '23

22 Jun '23

Hello, Im having a hard time figuring out how to handle a 302 reidrect, the uac_redirect modules shows a simple configuration. However for me, what it is not doing is changing the 302 back to invite. It is sending the 302 as is on. if(!t_check_status("3[0-9][0-9]")) { exit; } get_redirects("3:1"); t_relay(); This code just relays the 302 for me. I should add I am using this with the DISPATCHER module so perhaps that has something to do with my issue. Setup is this, kamailio is sitting between to sip servers, so the flow goes like this, sip_server_a -> kamailio -> sip_server_b. sip_server_b only responds with 302 redirects, sip_server_a does not handle 302’s at all. Kamailio will only get invites from sip_server_a, and the redirects from sip_server_b will only have one contact. How can I get kamailio to reply to sip_server_a’s invite with the updated INVITE? My config is a mesh of the dispatcher example and uac_redirect example with this specific section handling the redirect: # Sample failure route failure_route[RTF_DISPATCH] { xlog("L_NOTICE", "RTF_DISPATCH: "); if (t_is_canceled()) { exit; } # next DST - only for 500 or local timeout if (t_check_status("500") or (t_branch_timeout() and !t_branch_replied())) { if(ds_next_dst()) { t_on_failure("RTF_DISPATCH"); route(RELAY); exit; } } if (t_check_status("302")) { xlog("L_NOTICE", "RTF_DISPATCH: 302 "); if (!get_redirects("1:1")) { xlog("L_NOTICE", "RTF_DISPATCH: failed to get_redirects "); t_reply("480", "Temporarily Unavailable"); exit; } xlog("L_NOTICE", "RTF_DISPATCH: got redirects "); t_relay(“sip_server_a”,”5060”); } } Any ideas what I am doing wrong is this supported? Im expecting once I relay this message that it should be an INVITE not a 302 redirect. I cant find any examples of anyone else really doing this.

3 3

Missing posops module from 5.7 debian repo
by Patrick Karton 20 Jun '23

20 Jun '23

hello , i have installed kamailio 5.7 from debian repo http://deb.kamailio.org/kamailio57 bullseye main but i dont find the posops module in the directory modules. what is the exactly package where i can find it. Thanks.

2 5

KEMI
by iliusha.md＠gmail.com 19 Jun '23

19 Jun '23

Hello, I have the following statement: if KSR.is_method("INVITE") then KSR.log("info", "method not allowed " .. KSR.kx.get_method() .."\n"); KSR.x.exit(); end For some reason, it falls into this condition no matter which method I use, I tried OPTIONS, NOTIFY etc. log file: <core> [core/kemi.c:152]: sr_kemi_core_log(): method not allowed OPTIONS the same with this check: if KSR.is_method_in("I") then KSR.log("info", "method not allowed " .. KSR.kx.get_method() .."\n"); KSR.x.exit(); end this is the lua modparam settings: # ---- lua params ---- modparam("app_lua", "load", "/usr/local/etc/kamailio/main.lua") modparam("app_lua", "reload", 1) modparam("app_lua", "log_mode", 1) cfgengine "lua" version: kamailio 5.7.0 (x86_64/linux) 1c23c2 Any idea what I'm doing wrong?

2 1

Kamailio failover in aws/azure environment
by M Arqum CH 17 Jun '23

17 Jun '23

Hi members, I am setting up kamailio as loadbalcer for asterisk server farm with active-backup conf in Azure cloud using azure loadbalcer, for incoming it works fine external incoming traffic with nated external IP, can any one guide how to do active-backup configuration for internal traffic, as asterisk servers are running on local network. Thanks and regards Arqum

2 1

TLS errors
by nutxase 16 Jun '23

16 Jun '23

Hey All I have been setting up TLS and websocket for kamailio but i keep getting these errors in the log please can someone help me Jun 14 20:51:57 so-sbc-02 /usr/sbin/kamailio[25490]: ERROR: tls [tls_util.h:51]: tls_err_ret(): TLS accept:error:1408A0C1:SSL routines:ssl3_get_client_hello:no shared cipher (sni: [sip.domain.com](http://sip.sipalto.com)) Jun 14 20:51:57 so-sbc-02 /usr/sbin/kamailio[25490]: ERROR: tls [tls_server.c:1333]: tls_h_read_f(): src addr: 1.2.3.4.5:57265 Jun 14 20:51:57 so-sbc-02 /usr/sbin/kamailio[25490]: ERROR: tls [tls_server.c:1336]: tls_h_read_f(): dst addr: 5.4.3.2.1:8089Jun 14 20:51:57 so-sbc-02 /usr/sbin/kamailio[25490]: ERROR: <core> [core/tcp_read.c:1478]: tcp_read_req(): ERROR: tcp_read_req: error reading - c: 0x7f3c8fc16720 r: 0x7f3c8fc16848 (-1) my config is pretty standard so i am not sure what i am missing using letsencrypt certs #!ifdef WITH_TLS # ----- tls params ----- modparam("tls", "tls_method", "TLSv1.2+") modparam("tls", "certificate", "/etc/kamailio/tls/cert.pem") modparam("tls", "private_key", "/etc/kamailio/tls/ckey.pem") modparam("tls", "ca_list", "/etc/kamailio/tls/fullchain.pem")#!endif Sent with [Proton Mail](https://proton.me/) secure email.

3 5

impossible to modify $tU twice
by David VILLAUME 15 Jun '23

15 Jun '23

Hello, I’m in a scenario where i would apply different modification to $tU to User with KEMI, but I can’t achieve it. I managed to reproduce it with legacy config : Scenario 1 (both values concatenates): route[dbg] { $tU ="aaa"; $tU ="bbb"; } To: sip:aaabbb@5.5.5.5 Scenario 1 (both values concatenates and @ disapears): route[dbg] { $tU ="aaa"; $tU=$null; $tU ="bbb"; } To: sip:aaabbb5.5.5.5 --->without @ I tried different combination with [*] as for avps without success, does anyone have an idea about how to perform it ? Regards, David

3 2

Cannot achieve rtpengine HA
by Arsenijs Kabihno 13 Jun '23

13 Jun '23

Hello, We are trying to achieve rtpengine HA solely with kamailio and rtpengine module. In the following example call goes to rtpengine node 10.5.0.183:22222 and then we stop rtpengine service on this node to simulate failure. Client is triggering re-INVITE, but, apparently, kamailio sticks to initially selected rtpengine, producing the following errors: Jun 12 06:59:48 ap07stvp.xxxxxxx.xxx docker[9373]: 27(33) INFO: {2 2 INVITE jdl9kq6fv51jcv1agk2e} <script>: RTPENGINE branch_id:0 ruri: <null>, method:INVITE, status:200, extra_id: z9hG4bK55018600, rtpengine_answer: replace-origin replace-session-connection SIP-source-address direction=priv1 direction=pub1 SIP-source-address via-branch=extra rtcp-mux-offer generate-mid DTLS=passive SDES-off ICE=force RTP/SAVPF Jun 12 06:59:49 ap07stvp.xxxxxxx.xxx docker[9373]: 27(33) NOTICE: {2 2 INVITE jdl9kq6fv51jcv1agk2e} acc [acc.c:287]: acc_log_request(): ACC: transaction answered: timestamp=1686553189;method=INVITE;from_tag=fcn109nfe9;to_tag=01284cc8-bc58-4104-9629-8e6bb827d97f;call_id=jdl9kq6fv51jcv1agk2e;code=200;reason=OK;src_user=90362;src_domain=10.181.0.1;src_ip=10.5.0.145;dst_ouser=123;dst_user=123;dst_domain=10.181.0.1 Jun 12 06:59:49 ap07stvp.xxxxxxx.xxx docker[9373]: 31(37) INFO: {2 2 INVITE jdl9kq6fv51jcv1agk2e} <script>: RTPENGINE branch_id:0 ruri: <null>, method:INVITE, status:200, extra_id: z9hG4bK55018600, rtpengine_answer: replace-origin replace-session-connection SIP-source-address direction=priv1 direction=pub1 SIP-source-address via-branch=extra rtcp-mux-offer generate-mid DTLS=passive SDES-off ICE=force RTP/SAVPF Jun 12 06:59:49 ap07stvp.xxxxxxx.xxx docker[9373]: 51(57) INFO: {1 2 ACK jdl9kq6fv51jcv1agk2e} <script>: RTPENGINE branch_id:0 ruri: sip:10.5.2.192:5060, method:ACK, status:<null>, extra_id: <null>, rtpengine_offer: replace-origin replace-session-connection SIP-source-address direction=pub1 direction=priv1 SIP-source-address rtcp-mux-demux DTLS=off SDES-off ICE=remove RTP/AVP Jun 12 06:59:49 ap07stvp.xxxxxxx.xxx docker[9373]: 51(57) INFO: {1 2 ACK jdl9kq6fv51jcv1agk2e} <script>: RTPENGINE branch_id:0 ruri: sip:10.5.2.192:5060, method:ACK, status:<null>, extra_id: <null>, rtpengine_offer: replace-origin replace-session-connection SIP-source-address direction=pub1 direction=priv1 SIP-source-address rtcp-mux-demux DTLS=off SDES-off ICE=remove RTP/AVP Jun 12 07:01:26 ap07stvp.xxxxxxx.xxx docker[9373]: 27(33) INFO: {2 3 INVITE jdl9kq6fv51jcv1agk2e} <script>: RTPENGINE branch_id:0 ruri: <null>, method:INVITE, status:200, extra_id: z9hG4bK20888040, rtpengine_answer: replace-origin replace-session-connection SIP-source-address direction=priv1 direction=pub1 SIP-source-address via-branch=extra rtcp-mux-offer generate-mid DTLS=passive SDES-off ICE=force RTP/SAVPF Jun 12 07:01:26 ap07stvp.xxxxxxx.xxx docker[9373]: 27(33) ERROR: {2 3 INVITE jdl9kq6fv51jcv1agk2e} rtpengine [rtpengine.c:3070]: send_rtpp_command(): can't send command "offer" to RTPEngine <udp:10.5.0.183:22222> Jun 12 07:01:26 ap07stvp.xxxxxxx.xxx docker[9373]: 54(60) INFO: {1 3 ACK jdl9kq6fv51jcv1agk2e} <script>: RTPENGINE branch_id:0 ruri: sip:10.5.2.192:5060, method:ACK, status:<null>, extra_id: <null>, rtpengine_offer: replace-origin replace-session-connection SIP-source-address direction=pub1 direction=priv1 SIP-source-address rtcp-mux-demux DTLS=off SDES-off ICE=remove RTP/AVP Jun 12 07:01:26 ap07stvp.xxxxxxx.xxx docker[9373]: 54(60) ERROR: {1 3 ACK jdl9kq6fv51jcv1agk2e} rtpengine [rtpengine.c:2706]: rtpp_function_call(): no available proxies We also found Daniel answer on similar issue here: https://github.com/kamailio/kamailio/issues/2713#issuecomment-823138302 Please advise how it can be solved. Kind regards, Arsenijs

4 5

Carrierroute Test API?
by sr.maillists＠gmail.com 13 Jun '23

13 Jun '23

Hi List Does someone know a function to test a number against the carrierroute module, to see which route it picked? My Idea: We have multiple Kamailio-Proxies and I would like to test a number against all hosts to see where it will be routed, without performing testcalls. Regards Stefan

2 1

Kamailio/MySQL Module compatibility with MySQL 8.0+
by Pedro Ulhoa 13 Jun '23

13 Jun '23

Hello friends. I didn't find about it in the documentation, but I will need to update my database version to MySQL 8.0.32 and I'm using Kamailio version 5.4. I did some quick tests, and I only needed to adjust the user due to the authentication mode, and with that, apparently I had no problems. I would like to know if you are using Kamailio with the latest version of MySQL, if you have had any problems in production, and if it really is safe to upgrade. -- Aviso Legal: Este documento pode conter informações confidenciais e/ou privilegiadas. Se você não for o destinatário ou a pessoa autorizada a receber este documento, não deve usar, copiar ou divulgar as informações nele contidas ou tomar qualquer ação baseada nessas informações. Disclaimer: The information contained in this document may be privileged and confidential and protected from disclosure. If the reader of this document is not the intended recipient, or an employee agent responsible for delivering this document to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited.

3 2

What is the best way to return a lot of data via JSONRPC and jansson?
by Benoit Panizzon 12 Jun '23

12 Jun '23

Hi Team To offer some diagnose functionality I created an API that returns the location list via JSONRPC But this creates huge variables. Jun 12 09:43:32 prod-cpereg02 kamailio[2174548]: ERROR: <core> [core/pvapi.c:1491]: pv_printf_mode(): no more space for spec value - printed:0 token:8599 buffer:8192 Jun 12 09:43:32 prod-cpereg02 kamailio[2174548]: ERROR: <core> [core/pvapi.c:1503]: pv_printf_mode(): buffer overflow -- increase the buffer size... Already hitting the default limit and not sure this is the right way to go as we will end up with thousands of registrations. What is the best way to return larger ammounts of data out of kamailio? Avoid using the JSONRPC and access the database externally? Mit freundlichen Grüssen -Benoît Panizzon- -- I m p r o W a r e A G - Leiter Commerce Kunden ______________________________________________________ Zurlindenstrasse 29 Tel +41 61 826 93 00 CH-4133 Pratteln Fax +41 61 826 93 01 Schweiz Web http://www.imp.ch ______________________________________________________

2 1

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