E911 call blocking for non-initialized wireless telephones
2 Assignments
0 Petitions
Accused Products
Abstract
Calls from a phone identified as being a source of harassing or other undesirable phone calls are blocked at a mobile positioning center (MPC). Upon request by the PSAP, a call record detail can be obtained from the MPC revealing a simulated “callback phone number” as well as a unique number identifier of the phone, such as an ESN or MEID. The MPC then intercepts all future incoming calls from phones with that unique identifier number and routes them to a recording that advises the harasser that the phone has been identified as a harasser and is now blocked. The recording can also advise the caller how to restore service. In a preferred embodiment, the MPC sets a timer to automatically restore service after a designated length of time.
96 Citations
34 Claims
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1-20. -20. (canceled)
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21. A method of blocking an undesirable call from being routed to an intended phone, comprising:
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associating a simulated callback phone number with said undesirable call, said simulated callback phone number comprising “
911”
plus at least a portion of a device identification number;querying a mobile positioning center (MPC) for routing instructions for said undesirable call; comparing said simulated callback phone number with a known list of callback phone numbers to be blocked; and if a match is made by said comparing, blocking routing of said undesirable call to said intended phone. - View Dependent Claims (22, 23, 24, 25)
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28. Apparatus for blocking an undesirable call from being routed to an intended phone, comprising:
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means for associating a simulated callback phone number with said undesirable call, said simulated callback phone number comprising “
911”
plus at least a portion of a device identification number;means for querying a mobile positioning center (MPC) for routing instructions for said undesirable call; means for comparing said simulated callback phone number with a known list of callback phone numbers to be blocked; and means for blocking routing of said undesirable call to said intended phone if a match is made by said means for comparing. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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Specification