Communication and navigation system incorporating position determination

摘要: A method and apparatus for providing navigation information services. mobile unit which includes a microphone speaker is used to communicate between user service location. The location computer data storage on geography, roads, road conditions, traffic other may be of use user. receiver position determination processing circuitry determination. obtain routing by pressing button the so as initiate communication with then verbally requests he needs speaking into microphone. Using transmitted in storage, compiles response through stored reviewed manually. When voice based instructions, instructions incrementally broadcast required movement guide destination.