Patent ID: 8639299

Claim:
A mobile device, comprising; a core phone having a display unit, speaker, microphone, battery, microprocessor, memory, standard radio and wireless access point; and a primary device detachably connected to said core phone, said primary device having a display unit, speaker, microphone, battery, memory, microprocessor and a wireless radio, wherein: said detached primary device is authenticated for communicating with said core phone through a wireless communication link; said core phone transfers an incoming call alert to said detached primary device by synchronizing the display frame buffer of the core phone with the display frame buffer associated with the detached primary device; said detached primary device determines whether at least one secondary device is authorized to establish a connection with said core phone; and said core phone establishes a connection with, and transfers an incoming call alert to, the at least one secondary device based at least in part on the determination, by said detached primary device, that the at least one secondary device is authorized to establish a connection with said core phone.