# Calls plugin trouble

**URL:** <https://forum.mattermost.com/t/calls-plugin-trouble/19313>\
**Category:** Troubleshooting\
**Created:** [August 19, 2024, 11:28am UTC](https://forum.mattermost.com/t/calls-plugin-trouble/19313 "2024-08-19T11:28:04Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Murkeez](https://avatars.discourse-cdn.com/v4/letter/m/e47774/32.png) [@Murkeez](https://forum.mattermost.com/u/Murkeez)\
**Post date:** [August 19, 2024, 11:28am UTC](https://forum.mattermost.com/t/calls-plugin-trouble/19313/1 "2024-08-19T11:28:04Z")

</div>

Hello everyone! I recently deployed Mattermost (free version) on my server. The application is running on a server with Ubuntu 20.04. Nginx is used as a proxy, and the ports are forwarded.

Application version:

```auto
Version: 9.11.0
Build Number: 10163357270
Build Date: Tue Jul 30 13:43:52 UTC 2024
Build Hash: 0bc2ddd42375a75ab14e63f038165150d4f07659
Build Enterprise Ready: true

```

Plugin version for calls:

```auto
Calls (com.mattermost.calls - 0.29.1)

```

When trying to make a call, I see the following errors in the `mattermost.log`:

```auto
{"timestamp":"2024-08-19 14:14:13.410 +03:00","level":"warn","msg":"undeclaredMediaProcessor failed to open SrtpSession: the DTLS transport has not started yet","caller":"app/plugin_api.go:1014","plugin_id":"com.mattermost.calls","origin":"main.(*logger).Warn log.go:108","origin":"webrtc/v3.(*PeerConnection).undeclaredRTPMediaProcessor github.com/pion/webrtc/v3@v3.2.40/peerconnection.go:1652"}

```

I would appreciate any help with this issue, as my searches on forums and suggested solutions have not resolved the problem. Thank you in advance

---

<div class="post-metadata">

**Author:** ![john.combs](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/john.combs/32/7118_2.png) [@john.combs](https://forum.mattermost.com/u/john.combs)\
**Post date:** [August 21, 2024, 7:36pm UTC](https://forum.mattermost.com/t/calls-plugin-trouble/19313/2 "2024-08-21T19:36:34Z")

</div>

Hi Murkee! Thanks for reaching out to the community. It sounds like you’ve done a great job setting everything up so far! The error you’re seeing might be related to DTLS not being properly established. I recommend checking out our [‘Calls self-hosted deployment’ guide](https://docs.mattermost.com/configure/calls-deployment.html) to ensure everything is set up correctly. If the issue persists, feel free to share more details, and we’ll do our best to assist!