US8548505B2
патент
A method and system for leaving and retrieving messages at specific coordinate way points within a commercial mobile radio service (CMRS) provider network are disclosed. Users carry or transport interface devices for communicating over the network and are able to record and view messages at specific coordinate locations while traveling in the network. The location of the device is calculated by the device or by the network while the device is powered on and within the physi cal boundaries of the network, or through a combination of both. Messages can be made available to network subscribers when their interface devices come within an area centered
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