A connection apparatus has a USB port coupled to a USB interface for connection to a computing device enabled to manage IP audio calls, a land-line telephone port coupled to a Four-Wire Analog telephone interface, for connection to a Four-Wire port of a land-line telephone, a wireless interface for coupling to a communication device enabled to manage voice calls over a network, an analog audio port for a headset, coupled to an analog audio interface, a plurality of protocol translation modules, and switching circuitry enabled to connecting individual ones of the ports through individual ones of the protocol translation modules.