Voice Chat with Mumble

Mumble is a voice over IP (VoIP) application (primarily designed for use by gamers but can be used for all VoIP needs really). All communication is encrypted to ensure user privacy.

Server-side Installation

Debian

• Install murmur the Mumble server

apt install mumble-server

• Customize settings in /etc/mumble-server.ini. Particularly interesting variables are:

welcometext=             # Banner text
port=                    # Change the default port
serverpassword=          # Set a password or leave empty to make server public
bandwidth=               # set max bandwidth per client
users=                   # set max number of users
imagemessagelength=      # set max image upload size
registerName=            # Default name for the Mumble Root channel
sslCert=                 # SSL cert info, useful if you letsencrypt
sslKert=                 # SSL cert info, useful if you letsencrypt

• Service start, the usual way

service mumble-server start|stop|restart

Troubleshooting

Log file is /var/log/mumble-server/mumble-server.log.

Client-side Installation

Debian

• Install the client:

apt install mumble

• Follow the wizard for sound config
• Rest should be easy to figure out, important steps:
  • add server to directory
  • set nickname for server
  • once connected you can register the nickname