# Mumble Network Protocol Documentation The Mumble Network Protocol documentation is meant to be a reference for the Mumble VoIP 1.2.X server-client communication protocol. It reflects the state of the protocol implemented in the Mumble 1.2.8 client and might be outdated by the time you are reading this. * `Overview `_ * `Protocol Stack (TCP) `_ * `Establishing a Connection `_ * `Voice Data `_