E911 call blocking for non-initialized wireless telephones
First Claim
1. A method of blocking an undesirable call from being routed to an intended recipient, comprising:
- associating a simulated callback phone number with said undesirable call;
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 recipient at said mobile positioning center (MPC).
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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”. The MPC then intercepts all future incoming calls from that simulated callback phone 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.
115 Citations
18 Claims
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1. A method of blocking an undesirable call from being routed to an intended recipient, comprising:
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associating a simulated callback phone number with said undesirable call;
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 recipient at said mobile positioning center (MPC). - View Dependent Claims (2, 3, 4, 5, 6)
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7. Apparatus for blocking an undesirable call from being routed to an intended recipient, comprising:
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means for associating a simulated callback phone number with said undesirable call;
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 recipient at said mobile positioning center (MPC) if a match is made by said means for comparing. - View Dependent Claims (8, 9, 10, 11, 12)
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13. Apparatus for blocking an undesirable wireless call from being routed, comprising:
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a blocked phone number list maintained by a mobile positioning center (MPC);
a module to compare a callback number associated with a received query for routing instructions to entries in said blocked phone number list; and
if a match is made between said callback number and an entry in said blocked phone number list, refusing routing to an intended destination. - View Dependent Claims (14, 15)
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16. Apparatus for blocking an undesirable wireless call from being routed, comprising:
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a blocked phone number list maintained by a mobile positioning center (MPC);
means for comparing a callback number associated with a received query for routing instructions to entries in said blocked phone number list; and
means for refusing routing to an intended destination if a match is made between said callback number and an entry in said blocked phone number list. - View Dependent Claims (17, 18)
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Specification