Murmur (also called Mumble-Server) is the server component for Mumble. Mumble is an open source, cross platform, low-latency, high quality voice over IP (VoIP) client. Mumble uses a client/server architecture and is primarily used by gamers, but can be used for any VoIP purpose.
First of all we need Murmur in our server.
Setting up SSL certificates
If you already have used Certbot to set up certificates in your web server, then you can easily make a new certificate for a subdomain 'mumble' and add the cert paths to the mumble.ini configuration file. You can use vim and edit the file manually.
It should look something like this.
Starting up the service
Start the Murmur service.
You can add the Murmur service to the default runlevel.
In case you don't want Murmur to be default on runlevel, rollback with this command