# mumble > Low-latency, high quality voice chat software. > More information: . - Open Mumble: `mumble` - Open Mumble and immediately connect to a server: `mumble mumble://{{username}}@{{example.com}}` - Open Mumble and immediately connect to a password protected server: `mumble mumble://{{username}}:{{password}}@{{example.com}}` - Mute/unmute the microphone in a running Mumble instance: `mumble rpc {{mute|unmute}}` - Mute/unmute the microphone and the audio output of Mumble: `mumble rpc {{deaf|undeaf}}`