# General **URL:** https://janus.discourse.group/c/general/4.md [Latest](https://janus.discourse.group/latest.md) · [Categories](https://janus.discourse.group/categories.md) · [Tags](https://janus.discourse.group/tags.md) --- ## [Need consulting? Contact us!](https://janus.discourse.group/t/need-consulting-contact-us/17)
**Author:** [@lorenzo](https://janus.discourse.group/u/lorenzo)\ **Replies:** 0\ **Last updated:** [March 7, 2023, 10:39am UTC](https://janus.discourse.group/t/need-consulting-contact-us/17 "2023-03-07T10:39:13Z")
This group is meant as a place where Janus users can help each other with problems they’re experiencing, or where they can share projects and solutions around Janus usage. In case you need paid help (commercial support,… --- ## [About the General category](https://janus.discourse.group/t/about-the-general-category/3)
**Author:** [@system](https://janus.discourse.group/u/system)\ **Replies:** 0
If you’re experiencing issues with Janus, search existing topics here, or open a new one if you can’t find an answer. --- ## [Janus and DTLS 1.3 support](https://janus.discourse.group/t/janus-and-dtls-1-3-support/1798)
**Author:** [@digitalsamba](https://janus.discourse.group/u/digitalsamba)\ **Replies:** 0\ **Last updated:** [October 1, 2026, 11:20am UTC](https://janus.discourse.group/t/janus-and-dtls-1-3-support/1798 "2026-10-01T11:20:42Z")
Are there any known issues with Janus and DTLS 1.3? BoringSSL is now using DTLS 1.3 by default since half a year and we possibly experienced an edge case with publishers on a poor connection where they think they were pu… --- ## [Issues with transfers when using the SIP Plugin (multistream build)](https://janus.discourse.group/t/issues-with-transfers-when-using-the-sip-plugin-multistream-build/1797)
**Author:** [@rick\_dekkard](https://janus.discourse.group/u/rick_dekkard)\ **Replies:** 4\ **Last updated:** [September 30, 2026, 3:54pm UTC](https://janus.discourse.group/t/issues-with-transfers-when-using-the-sip-plugin-multistream-build/1797 "2026-09-30T15:54:05Z")
We have encountered an interoperability issue with blind SIP transfers using the Janus SIP plugin. Janus accepts the transfer request and sends a SIP REFER, but the downstream SIP platform rejects the REFER with: 400 M… --- ## [Retransmitted packets due to NACK and freezes](https://janus.discourse.group/t/retransmitted-packets-due-to-nack-and-freezes/1795)
**Author:** [@programmer](https://janus.discourse.group/u/programmer)\ **Replies:** 4\ **Last updated:** [August 24, 2026, 2:24pm UTC](https://janus.discourse.group/t/retransmitted-packets-due-to-nack-and-freezes/1795 "2026-08-24T14:24:36Z")
I use video to stream from my app to janus sfu and receive the stream from janus into the app or browser. I set transport\_wide\_cc\_ext=true when creating a room. It all works more or less correctly but the problem is the… --- ## [Videocalls cant connect, Error 420](https://janus.discourse.group/t/videocalls-cant-connect-error-420/1794)
**Author:** [@HeribertBoz](https://janus.discourse.group/u/HeribertBoz)\ **Replies:** 0\ **Last updated:** [August 11, 2026, 1:08pm UTC](https://janus.discourse.group/t/videocalls-cant-connect-error-420/1794 "2026-08-11T13:08:32Z")
Hi, i have a nextcloud install with nextcloud talk that uses janus. My videocalls start and then they reconnect in a loop. First I checked the firewall. Port 3478 is forwarded as per nextcloud instructions. After some … --- ## [Videocall degrades on 28+ participants on one server](https://janus.discourse.group/t/videocall-degrades-on-28-participants-on-one-server/1784)
**Author:** [@anindis](https://janus.discourse.group/u/anindis)\ **Replies:** 3\ **Last updated:** [June 29, 2026, 1:19am UTC](https://janus.discourse.group/t/videocall-degrades-on-28-participants-on-one-server/1784 "2026-06-29T01:19:58Z")
Hello I have a janus server. It has 12gb ram and 16 core CPU. I use google server as stun I have a vue-built client that inhabits kubernetes (the client is built with AI) When I have there around 27+ people on this se… --- ## [Reclaim\_session\_timeout issue](https://janus.discourse.group/t/reclaim-session-timeout-issue/1788)
**Author:** [@oleksandr.mihal](https://janus.discourse.group/u/oleksandr.mihal)\ **Replies:** 3\ **Last updated:** [May 12, 2026, 7:44am UTC](https://janus.discourse.group/t/reclaim-session-timeout-issue/1788 "2026-05-12T07:44:56Z")
Hi everyone, Per doc, reclaim\_session\_timeout is ‘how long (in seconds) we should wait for a janus session to be reclaimed after the transport is gone’. In real, this timeout is counted from session last activity (li… --- ## [One UDP port to serve them all?](https://janus.discourse.group/t/one-udp-port-to-serve-them-all/1787)
**Author:** [@mirkobrankovic](https://janus.discourse.group/u/mirkobrankovic)\ **Replies:** 2\ **Last updated:** [May 5, 2026, 10:13am UTC](https://janus.discourse.group/t/one-udp-port-to-serve-them-all/1787 "2026-05-05T10:13:19Z")
Hi Meetecho team, I was wondering if there are any plans to implement more robust kubernetes/docker solution to expose one UDP port for all sessions and identify RTP packets based on ufrag from Stun/ICE? Something like… --- ## [Videoroom DataChannel](https://janus.discourse.group/t/videoroom-datachannel/1782)
**Author:** [@Piflik](https://janus.discourse.group/u/Piflik)\ **Replies:** 6\ **Last updated:** [April 22, 2026, 10:28am UTC](https://janus.discourse.group/t/videoroom-datachannel/1782 "2026-04-22T10:28:38Z")
I am currently trying to implement the Janus API für a Unity project, for now only the videoroom. I have got it running, including the DataChannel, but I have one small issue: I get an incomming datachannel for every pu… --- ## [Janus \<\> Freeswitch Websocket connection](https://janus.discourse.group/t/janus-freeswitch-websocket-connection/1780)
**Author:** [@mirkobrankovic](https://janus.discourse.group/u/mirkobrankovic)\ **Replies:** 1\ **Last updated:** [April 17, 2026, 7:54am UTC](https://janus.discourse.group/t/janus-freeswitch-websocket-connection/1780 "2026-04-17T07:54:13Z")
Hi, Just to let you know that I’m adding websockets connection in mod\_janus, module for Freeswitch, to make it easier to connect to audiobridge room. I case anyone is using it :slight\_smile: Thnaks --- ## [Subscriber switch to lower simulcast layer if not enough bandwidth or struggling](https://janus.discourse.group/t/subscriber-switch-to-lower-simulcast-layer-if-not-enough-bandwidth-or-struggling/1779)
**Author:** [@digitalsamba](https://janus.discourse.group/u/digitalsamba)\ **Replies:** 1\ **Last updated:** [April 7, 2026, 3:47pm UTC](https://janus.discourse.group/t/subscriber-switch-to-lower-simulcast-layer-if-not-enough-bandwidth-or-struggling/1779 "2026-04-07T15:47:58Z")
Is there a best recipe how to switch subscriber to receive a lower simulcast layer in Janus when he is struggling? I saw this PR - https://github.com/meetecho/janus-gateway/pull/3278 , but seems not merged yet. If in th… --- ## [Janus high video age with dropped udp packets](https://janus.discourse.group/t/janus-high-video-age-with-dropped-udp-packets/1777)
**Author:** [@Chrysale3](https://janus.discourse.group/u/Chrysale3)\ **Replies:** 1\ **Last updated:** [March 27, 2026, 12:47am UTC](https://janus.discourse.group/t/janus-high-video-age-with-dropped-udp-packets/1777 "2026-03-27T00:47:15Z")
Hey I’m running Janus in a docker container and I have about 6800 cameras and growing. Initially after being setup the solution worked perfectly but, as time went by and cameras got added the worst video performance got.… --- ## [VideoRoom Room Cascading with Turn](https://janus.discourse.group/t/videoroom-room-cascading-with-turn/1776)
**Author:** [@rjcampion3](https://janus.discourse.group/u/rjcampion3)\ **Replies:** 2\ **Last updated:** [March 27, 2026, 12:44am UTC](https://janus.discourse.group/t/videoroom-room-cascading-with-turn/1776 "2026-03-27T00:44:33Z")
We have an architecture where we have edge devices on prem and a k8s cluster in the cloud. The k8s cluster has Janus and STUNner and the edge device has a janus instance as well. In certain cases we want to publish edge … --- ## [Why documentation is out of sync from source?](https://janus.discourse.group/t/why-documentation-is-out-of-sync-from-source/1775)
**Author:** [@Normando](https://janus.discourse.group/u/Normando)\ **Replies:** 3\ **Last updated:** [March 16, 2026, 3:35am UTC](https://janus.discourse.group/t/why-documentation-is-out-of-sync-from-source/1775 "2026-03-16T03:35:31Z")
Hi Lorenzo a devs. Reading the NoSIP documentation (I assume the same is true for others) I noticed that the latest documentation on it was not included, according to Add RTP forwarders support to SIP and NoSIP plugins … --- ## [Support for Adding Custom HTTP Response Headers (HSTS) in Janus WebRTC Server](https://janus.discourse.group/t/support-for-adding-custom-http-response-headers-hsts-in-janus-webrtc-server/1774)
**Author:** [@Rohit](https://janus.discourse.group/u/Rohit)\ **Replies:** 1\ **Last updated:** [March 13, 2026, 2:26am UTC](https://janus.discourse.group/t/support-for-adding-custom-http-response-headers-hsts-in-janus-webrtc-server/1774 "2026-03-13T02:26:53Z")
We have Janus WebRTC Server deployed behind HTTPS and performing a security assessment from the security team. During the vulnerability scan, the following issue was identified: HSTS Missing From HTTPS Server (RFC 6797… --- ## [VideoRoom: No JSEP offer received after publisher leaves and rejoins/join when reusing single subscriber PeerConnection (C++)](https://janus.discourse.group/t/videoroom-no-jsep-offer-received-after-publisher-leaves-and-rejoins-join-when-reusing-single-subscriber-peerconnection-c/1771)
**Author:** [@aniketabuj](https://janus.discourse.group/u/aniketabuj)\ **Replies:** 4\ **Last updated:** [March 4, 2026, 8:51am UTC](https://janus.discourse.group/t/videoroom-no-jsep-offer-received-after-publisher-leaves-and-rejoins-join-when-reusing-single-subscriber-peerconnection-c/1771 "2026-03-04T08:51:17Z")
Hi all, I’m using the VideoRoom plugin with a custom C++ client (libwebrtc based) application. I’m handling subscriptions using a single subscriber handle and a single RTCPeerConnection, and performing renegotiation whe… --- ## [Ideal settings for VideoRoom and Streaming helper threads](https://janus.discourse.group/t/ideal-settings-for-videoroom-and-streaming-helper-threads/1773)
**Author:** [@jessedewild](https://janus.discourse.group/u/jessedewild)\ **Replies:** 0\ **Last updated:** [March 2, 2026, 9:37pm UTC](https://janus.discourse.group/t/ideal-settings-for-videoroom-and-streaming-helper-threads/1773 "2026-03-02T21:37:27Z")
Hi there, I had a question about what the ideal settings are, and if we use it correctly. We currently have around 14 different Janus servers, each having 8 cores (3 of them have 16). Our setup is the following: Ea… --- ## [Information about not working demo's](https://janus.discourse.group/t/information-about-not-working-demos/1770)
**Author:** [@mcgiwer](https://janus.discourse.group/u/mcgiwer)\ **Replies:** 1\ **Last updated:** [February 23, 2026, 10:08am UTC](https://janus.discourse.group/t/information-about-not-working-demos/1770 "2026-02-23T10:08:44Z")
Hello. I wanted to let you know that the some demo’s, like for example “Admin/Monitor” are down. Could you please verify and restart them? Thanks :slightly\_smiling\_face: --- ## [Is there a possibility that AudioBridge ingests external RTP participants?](https://janus.discourse.group/t/is-there-a-possibility-that-audiobridge-ingests-external-rtp-participants/1768)
**Author:** [@Normando](https://janus.discourse.group/u/Normando)\ **Replies:** 4\ **Last updated:** [February 16, 2026, 7:15pm UTC](https://janus.discourse.group/t/is-there-a-possibility-that-audiobridge-ingests-external-rtp-participants/1768 "2026-02-16T19:15:12Z")
I can’t find that this is possible with the AudioBridge plugin. However, I’m interested in having RTP participants, not just listeners but speakers, in addition to WebRTC participants. Is this possible, or have I missed … --- ## [Install Janus 1.x on Centos 7 guide](https://janus.discourse.group/t/install-janus-1-x-on-centos-7-guide/1764)
**Author:** [@Normando](https://janus.discourse.group/u/Normando)\ **Replies:** 3\ **Last updated:** [February 8, 2026, 8:47am UTC](https://janus.discourse.group/t/install-janus-1-x-on-centos-7-guide/1764 "2026-02-08T08:47:44Z")
Based on my post asking for a build error, and with the guidelines from Lorenzo, I finally can build and install on an old Centos 7 OS. Dependencies First you need to get and build meson and ninja build. Here are some r… --- ## [Build error on EOL Centos 7](https://janus.discourse.group/t/build-error-on-eol-centos-7/1763)
**Author:** [@Normando](https://janus.discourse.group/u/Normando)\ **Replies:** 3\ **Last updated:** [February 2, 2026, 7:04pm UTC](https://janus.discourse.group/t/build-error-on-eol-centos-7/1763 "2026-02-02T19:04:39Z")
Hi all. I posting here because this is not an issue with Janus. Instead it is an issue with the build I trying to make in an old Centos 7 OS. I was installed all the dependencies, also installed boringssl Janus is 1.4.0… --- ## [RTP Forwarding and SRTP auth\_fail errors](https://janus.discourse.group/t/rtp-forwarding-and-srtp-auth-fail-errors/1761)
**Author:** [@digitalsamba](https://janus.discourse.group/u/digitalsamba)\ **Replies:** 2\ **Last updated:** [February 2, 2026, 10:20am UTC](https://janus.discourse.group/t/rtp-forwarding-and-srtp-auth-fail-errors/1761 "2026-02-02T10:20:45Z")
We are experiencing a serious SRTP auth\_fail issue in production where we are RTP forwarding a video or an audio stream, then stop the forwarding and forward again the same feed id to the same streaming plugin mid. In a… --- ## [491 request pending](https://janus.discourse.group/t/491-request-pending/1760)
**Author:** [@lakshmideepak](https://janus.discourse.group/u/lakshmideepak)\ **Replies:** 1\ **Last updated:** [January 29, 2026, 12:17pm UTC](https://janus.discourse.group/t/491-request-pending/1760 "2026-01-29T12:17:12Z")
Hello, Do u know by any chance why im getting this error. context: actually what is happening is im getting a incoming call and im accepting it then after a delay of 2sec when i recive webrtcup im making a another call… --- ## [Sdp-utils: janus\_sdp\_get\_video\_profile() function \> I think exception handling is needed](https://janus.discourse.group/t/sdp-utils-janus-sdp-get-video-profile-function-i-think-exception-handling-is-needed/1754)
**Author:** [@Jaejong](https://janus.discourse.group/u/Jaejong)\ **Replies:** 4\ **Last updated:** [January 26, 2026, 1:19pm UTC](https://janus.discourse.group/t/sdp-utils-janus-sdp-get-video-profile-function-i-think-exception-handling-is-needed/1754 "2026-01-26T13:19:34Z")
(My english is not that good.) I am deeply grateful for Janus. Exception handling seems necessary when extracting the profile from the following fmtp string if there is a space after the semicolon (;). vfmtp ex) blank… --- ## [In response to a 'secure' offerless SIP Invite, the Janus WebRTC server is missing SDES in the offer SIP 200OK with SDP](https://janus.discourse.group/t/in-response-to-a-secure-offerless-sip-invite-the-janus-webrtc-server-is-missing-sdes-in-the-offer-sip-200ok-with-sdp/1757)
**Author:** [@Ritesh](https://janus.discourse.group/u/Ritesh)\ **Replies:** 3\ **Last updated:** [January 23, 2026, 5:47pm UTC](https://janus.discourse.group/t/in-response-to-a-secure-offerless-sip-invite-the-janus-webrtc-server-is-missing-sdes-in-the-offer-sip-200ok-with-sdp/1757 "2026-01-23T17:47:15Z")
Hi, I am using the Janus WebRTC Server version 1.2.4 for secure SIP calling. Issue short description: When the Janus WebRTC server receives the offerless SIP Invite from the secure SIP SBC, then the server is expected … --- ## [How to upgrade or rollback Janus WebRTC server to latest/specific Janus WebRTC software version?](https://janus.discourse.group/t/how-to-upgrade-or-rollback-janus-webrtc-server-to-latest-specific-janus-webrtc-software-version/1758)
**Author:** [@Ritesh](https://janus.discourse.group/u/Ritesh)\ **Replies:** 1\ **Last updated:** [January 23, 2026, 5:05pm UTC](https://janus.discourse.group/t/how-to-upgrade-or-rollback-janus-webrtc-server-to-latest-specific-janus-webrtc-software-version/1758 "2026-01-23T17:05:48Z")
Hi, I am using the Janus WebRTC Server version 1.2.4. I wish to know on how to ‘safely’ upgrade the server with the latest/specific Janus WebRTC software version ( I believe the latest software version is 1.4.0)?? And… --- ## [\[VideoRoom\] AudioLevel events emitted to subscriber?](https://janus.discourse.group/t/videoroom-audiolevel-events-emitted-to-subscriber/1756)
**Author:** [@jgan](https://janus.discourse.group/u/jgan)\ **Replies:** 1\ **Last updated:** [January 23, 2026, 4:56pm UTC](https://janus.discourse.group/t/videoroom-audiolevel-events-emitted-to-subscriber/1756 "2026-01-23T16:56:04Z")
I’m trying to use the audiolevel\_events config on the videoroom plugin to detect if the publisher is speaking and notify subscribers. Since they are not regarded as participants, do subscribers still receive the event if… --- ## [Sip audio to get pcm samples](https://janus.discourse.group/t/sip-audio-to-get-pcm-samples/1755)
**Author:** [@lakshmideepak](https://janus.discourse.group/u/lakshmideepak)\ **Replies:** 1\ **Last updated:** [January 23, 2026, 4:51pm UTC](https://janus.discourse.group/t/sip-audio-to-get-pcm-samples/1755 "2026-01-23T16:51:15Z")
Hello, can u correct me if im wrong. currently im using webrtc to use jsep given by sip when incoming call comes and sink from pc giving me the pcm samples which i can use for external uses, do i really need to use rtp f… --- ## [Janus audiobridge and cpu cores usage](https://janus.discourse.group/t/janus-audiobridge-and-cpu-cores-usage/1747)
**Author:** [@spscream](https://janus.discourse.group/u/spscream)\ **Replies:** 2\ **Last updated:** [December 15, 2025, 8:40am UTC](https://janus.discourse.group/t/janus-audiobridge-and-cpu-cores-usage/1747 "2025-12-15T08:40:03Z")
Hi, we are getting issues on one of our customer, they are having on peak 400 rooms, 700 participants joined to vr and 300 audio publishers to audiobridge(not no the same room, splitted between those 400 rooms). Their ja… [Next page](https://janus.discourse.group/c/general/4.md?page=1)