This modular wireless headset supports voice communications over a servicing network when paired to a public base unit. This modular wireless headset provides access to servicing networks that is both secure and private. The headset includes a wireless microphone and wireless earpiece. This wireless microphone and earpiece may communicate between themselves wirelessly or via a direct physical link. The wireless earpiece may exchange radio frequency (RF) signals with the public base unit and render content exchanged within the RF signals to a user. The wireless earpiece includes a first wireless interface, a first processing circuit, a speaker, a user interface, and an authentication module. The wireless interface is operable to wirelessly communicate with the base unit as well as the wireless microphone. The processing circuit may recover content such as voice communications wirelessly communicated from the base unit. The speaker then renders these communications audible. The user interface couples to the processing circuit to receive user commands such as network interface commands that direct the headset to register with the base unit. The authentication module prepares the wireless earpiece and wireless microphone, registers of the wireless headset to the base unit, and handles authentication between the headset and certain servicing networks.