Title: Prosody server support for A/V calls with Conversations 
Date: 2020-05-04
Tags: xmpp, chat, coturn, instant messaging, prosody, audio/video calls
Slug: server-support-for-audio-video-calls
Summary: Configure support for audio/video calls with Prosody,
Category: instant messaging
Status: draft

[TOC]

Introduction
---

This is a guide to set up server-side support for audio/video calls over XMPP. To do this we will install and configure `coturn`, a libre STUN/TURN server that helps establish peer connections across firewalls for media streams such as calls. Additionally we will configure `prosody` to talk to `coturn`.

Like the other guides, this one assumes Debian stable running on the server, the fact that you will end up hosting a few of your friends and that you have some basic skills working on a linux command line.

Furthermore it assumes you have already installed and configured Prosody, if you haven't have a look [at how to do so as well!]({filename}instant-messaging/configuring_an_xmpp_server_prosody_0.11.md)


Set up firewall 
----

To make your server communicate make sure following ports are open in your firewall for UDP traffic:

    :::console
    3478 (TURN)
    5349 (TURN + TLS)
	49152-65535 (UDP endpoints for clients)

Set up coturn
---

First install `coturn`

	:::console
	sudo apt-get update && sudo apt-get install coturn