# Calls

Matrix supports two types of calls:

- Element Call powered by [MatrixRTC][MSC4143] and [LiveKit][livekit-server-github]
- Legacy calls, supported by a STUN/TURN server.

[MSC4143]: https://github.com/matrix-org/matrix-spec-proposals/pull/4143
[livekit-server-github]: https://github.com/livekit/livekit

Both types of calls are supported by different sets of clients, but most clients are moving towards MatrixRTC / Element Call.

For either one to work correctly, you have to do some additional setup:

- For legacy calls to work, you need to set up a TURN/STUN server. [Read the TURN guide for instructions on how to set up coturn](./calls/turn.mdx)
- For MatrixRTC / Element Call to work, you have to set up the LiveKit backend, and optionally configure a TURN server for increased reliability. [Read the LiveKit guide](./calls/livekit.mdx)