SWITCHING A CALL FROM A NETWORK ASSISTED COMMUNICATION MODE TO A DIRECT COMMUNICATION MODE

摘要

A mobile communication device ( 214 ) in a communication system ( 200 ) initiates a call over the fixed equipment network of the communication system to another mobile communication device ( 216 ). If the two mobile communication devices are within sufficient proximity to each other, they may switch to a direct mode of communication. ( 318 ). The direct mode and network mode of communication are in different frequency bands using different air interface protocols.