Patent ID: 9467559
Filing Date: 2016-10-11
CPC Classification: H04M,H04W

Claim Text:
1. A method of blocking a source device of a probable nonlegitimate emergency call, comprising: receiving an incoming emergency call from a physical wireless device associated with a given location; initiating a request to a caller data server in communication with a blacklisted caller database to perform a lookup of other emergency call records recently made from a same general location as said given location, and all routed to a same public safety answering point (PSAP); comparing said incoming emergency call to said emergency call records to determine if multiple emergency calls have been made recently from said physical wireless device; receiving a feedback message regarding a probability of said received emergency call being a non-legitimate emergency call; and adding, to said blacklisted caller database, an identifying telephone number or mobile identification number (MIN) of said physical wireless device when said probability is beyond an acceptable threshold amount.