Patent ID: 6975873

Claim:
A method for determining whether each mobile station in a pre-defined group is in compliance with an acceptable location criteria, the method comprising: receiving mobile station tracking information including a mobile station identifier for each mobile station in the pre-defined group; receiving current location coordinates corresponding to the mobile station identifier for each mobile station from a locator device; calculating a relative location of each mobile station relative to at least one pre-determined target; retrieving the acceptable location criteria for each mobile station relative to the one pre-determined target from a location criteria database; comparing the calculated relative location of each mobile station relative to the one pre-determined target, with the retrieved location criteria to determine whether the calculated relative location is in compliance with the acceptable location criteria; notifying a subscriber if the calculated relative location is in compliance with the acceptable location criteria; and alerting the subscriber for each mobile station whose calculated relative location is not in compliance with the acceptable location criteria.