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CELLULAR PHONE FOR THE OLD, WHICH IS AUTOMATICALLY CONNECTED WITH A GUARDIAN'S CELLULAR PHONE IN AN EMERGENCY, AND AN OPERATION SYSTEM, SPECIALLY CORRELATED TO TRANSMITTING A POSITION INFORMATION MESSAGE TO THE GUARDIAN'S CELLULAR PHONE IF THE CELLULAR PHONE FOR THE OLD IS OUT OF A CERTAIN POSITION OR IN AN EMERGENCY
CELLULAR PHONE FOR THE OLD, WHICH IS AUTOMATICALLY CONNECTED WITH A GUARDIAN'S CELLULAR PHONE IN AN EMERGENCY, AND AN OPERATION SYSTEM, SPECIALLY CORRELATED TO TRANSMITTING A POSITION INFORMATION MESSAGE TO THE GUARDIAN'S CELLULAR PHONE IF THE CELLULAR PHONE FOR THE OLD IS OUT OF A CERTAIN POSITION OR IN AN EMERGENCY
PURPOSE: A cellular phone for the old, which is automatically connected with a guardian's cellular phone in an emergency, and an operation system are provided to preset a mobile position and a limited distance between a mother cellar phone and a child cellular phone, and to automatically call the mother cellular phone or transmit a position information message in an emergency, so that the mother phone can perceive an emergent situation of the child cellular phone. CONSTITUTION: A communication provider registers a telephone number and a mobile area of a child cellular phone as well as a distance up to a mother cellular phone(S1), and perceives position information on the two cellular phones(S2), then decides whether the child cellular phone is out of a certain range(S3). If so, the provider transmits a message to the mother cellular phone(S4). The mother cellular phone confirms the message(S5), and decides whether a message send key is sensed or operated(S6). If so, sensed contents and a position information message are sent to the mother cellular phone(S7).
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