作者: Michael R. Loeb , Edward J. McCabe
DOI:
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摘要: A system and method is provided to alert users if another user has entered within a prescribed geographic region selected by the user. According embodiment, for communicating among plurality of over wireless communication network using location based messaging comprises: receiving at central server message from user, said including information, extracting information server; determining whether corresponding included in message, transmitting an mobile device sending alerting that region.