Providing by a wireless terminal the sole communication link to a wireless telecommunication switching system, and inserting the wireless terminal into an auxiliary desktop unit to provide the full functional capabilities of a business telecommunication terminal. The result is that a user has one telephone number for the wireless terminal, and yet, when the wireless terminal is inserted into the auxiliary unit, the user is provided the full capabilities of a modern business telecommunication wired terminal. Also, no wired telephone links must be installed since the wireless terminal communicates solely over a wireless media.