sr-users November 2025

sr-users@lists.kamailio.org

22 participants
26 discussions

Best approach for high availability cluster
by dries＠degendt.com 06 Nov '25

06 Nov '25

Hi all, Our current VOIP infrastructure includes a pair of Asterisk servers behind an F5 load balancer, but I'm in the process of migrating to a Kamailio cluster. I've set up a master/backup Kamailio cluster with Keepalived, accessible via a virtual IP. The system uses an active/active MariaDB Galera cluster for storing registrations, and I plan to implement DMQ in the future to handle active dialogs as well. However, I've noticed that during failover, it takes a significant amount of time for SIP clients to detect that their TCP session is broken and re-register. I'm looking for best practices to minimize the downtime for SIP clients. Has anyone successfully used the Linux Virtual Server (LVS) implementation in Keepalived to synchronize TCP sessions, so that the backup node can seamlessly handle the existing sessions from clients? Or is the only solution to reduce the SIP client’s registration timer to something like 1 minute to speed up the re-registration? Cheers, Dries

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Kamailio.org Website
by Yitzchak Pachtman 06 Nov '25

06 Nov '25

Good morning, Is anyone else experiencing timeouts and slowness? Thank you, Yitz [image: image.png]

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Kamailio v6.0.4 Released
by Daniel-Constantin Mierla 06 Nov '25

06 Nov '25

Hello, Kamailio SIP Server v6.0.4 stable release is out! This is a maintenance release of the latest stable branch, 6.0, that includes fixes since the release of v6.0.3. There is no change to database schema or configuration language structure that you have to do on previous installations of v6.0.x. Deployments running previous v6.0.x versions are strongly recommended to be upgraded to v6.0.4. For more details about version 6.0.4 (including links and guidelines to download the tarball or from GIT repository), visit: * https://www.kamailio.org/w/2025/11/kamailio-v6-0-4-released/ RPM, Debian/Ubuntu packages will be available soon as well. Many thanks to all contributing and using Kamailio! Cheers, Daniel -- Daniel-Constantin Mierla (@ asipto.com) twitter.com/miconda -- linkedin.com/in/miconda Kamailio Consultancy, Training and Development Services -- asipto.com

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Info: Next Kamailio World Conference, May 7-8, 2026, Berlin, Germany
by Daniel-Constantin Mierla 06 Nov '25

06 Nov '25

Hello, a short note to inform that the next Kamailio World Conference is planned for May 7-8, 2026, at the same venue - hotel Novotel Berlin Mitte - in the city center of Berlin, Germany. The 2026 marks the 25th years of Kamailio (SER) project development, a good additional reason for a celebration. Website and more details will be published in the near future: - https://www.kamailioworld.com Looking forward to seeing many of you in Berlin! Cheers, Daniel -- Daniel-Constantin Mierla (@ asipto.com) twitter.com/miconda -- linkedin.com/in/miconda Kamailio Consultancy, Training and Development Services -- asipto.com

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Releasing v6.0.4
by Daniel-Constantin Mierla 06 Nov '25

06 Nov '25

Hello, I am considering to release Kamailio v6.0.4 (out of branch 6.0) on Thursday, Nov 6, 2025. If anyone is aware of issues not yet on the bug tracker, report them there asap in order to have a better chance to be fixed. Cheers, Daniel -- Daniel-Constantin Mierla (@ asipto.com) twitter.com/miconda -- linkedin.com/in/miconda Kamailio Consultancy, Training and Development Services -- asipto.com

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seting sdp bundle with rtpengine
by Samuel Moya Tinoco 02 Nov '25

02 Nov '25

Hi everyone, I want to configure my kamailio+rtpengine to use the option bundle in SDP. I have a dedicated route to configure the specific rtpengine_manage options for each case (it's based on a route I saw in github) route[SETUP_BY_TRANSPORT] { if ($ru =~ "transport=ws") { xlog("L_INFO", "Request going to WS"); if(sdp_with_transport("RTP/SAVPF")) { rtpengine_manage("replace-origin replace-session-connection DTLS=passive SDES-off ICE=force SRTP AVPF rtcp-mux-reject bundle=accept"); t_on_reply("REPLY_WS_TO_WS"); return; } rtpengine_manage("replace-origin replace-session-connection DTLS=passive SDES-off ICE=force UDP/TLS/RTP/SAVPF bundle=accept bundle=accept"); t_on_reply("REPLY_FROM_WS"); } else if ($proto =~ "ws") { xlog("L_INFO", "Request coming from WS"); rtpengine_manage("replace-origin replace-session-connection DTLS SDES-off ICE=force SRTP AVPF bundle=accept"); t_on_reply("REPLY_TO_WS"); } else { xlog("L_INFO", "This is a classic phone call"); if (isflagset(RTPENGINE_NO_SRTP)){ xlog("L_INFO", "Llamada de Telealarm a la IPS (no srtp)"); rtpengine_manage("replace-origin replace-session-connection DTLS=off SDES-off RTP/AVP"); t_on_reply("REPLY_NO_SRTP"); return; } if ($tU=~"^ips") { rtpengine_manage("replace-origin replace-session-connection DTLS=passive SDES-off UDP/TLS/RTP/SAVPF"); t_on_reply("REPLY_NO_SRTP_ICE"); return; } if (isflagset(RTPENGINE_NO_ICE)) { rtpengine_manage("replace-origin replace-session-connection DTLS=passive SDES-off UDP/TLS/RTP/SAVPF ICE=remove"); t_on_reply("MANAGE_CLASSIC_REPLY"); return; } rtpengine_manage("replace-origin replace-session-connection DTLS=passive SDES-off UDP/TLS/RTP/SAVPF ICE=force"); t_on_reply("MANAGE_CLASSIC_REPLY_NO_ICE"); return; } } Reading the rtpengine and kamailio docs I see that rtpengine shows more options than kamailio rtpengine module. In rtpengine options it shows bundle option but in kamailio it doesn't appear. And I've tried to set this option but it doesn't work. Kamailio recives the invite with bundle but when it sends the invite to my asterisk the invite doesn't have the bundle option enabled Does anyone know what could be happening? Maybe I'm doing something wrong Thanks in advance for your time and help Samuel Moya Tinoco Departamento de Sistemas y Redes Móvil: (+34) 606985997 smoya(a)vivelibre.es<mailto:smoya@vivelibre.es> ViveLibre C/ La Orotava 4 28660 Boadilla del Monte Madrid www.vivelibre.es<http://www.vivelibre.es/> [cid:image001.png@01DC49C0.02D76010] Soluciones inteligentes para la autonomía personal "Tanto este mensaje como todos los posibles documentos adjuntos al mismo son confidenciales y están dirigidos exclusivamente a los destinatarios de los mismos. Por favor, si Usted no es uno de dichos destinatarios, notifíquenos este hecho y elimine el mensaje de su sistema. Queda prohibida la copia, difusión o revelación de su contenido a terceros sin el previo consentimiento por escrito de VIVELIBRE AUTONOMÍA PERSONAL S.L.U. (VIVELIBRE). En caso contrario, vulnerará la legislación vigente. De conformidad con lo establecido en el Reglamento (UE) 2016/679, General de Protección de Datos, le informamos de que sus datos son objeto de tratamiento por VIVELIBRE, en calidad de Responsable del Tratamiento. VIVELIBRE tratará sus datos con la finalidad de mantener la relación contractual, gestionar su solicitud, así como remitirle comunicaciones de carácter comercial relacionadas con su ámbito de actividad y los servicios prestados. Si desea ejercitar sus derechos de acceso, rectificación, supresión, limitación, oposición o portabilidad, puede dirigirse a la dirección postal Calle de la Orotava 4, 28660, Boadilla del Monte, (Madrid) o a la dirección de correo electrónico protecciondedatos(a)vivelibre.es. Para obtener más información sobre cómo tratamos sus datos, consulta nuestra Política de Privacidad en Política de Privacidad - Vivelibre."

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sr-users November 2025