E911 call blocking for non-initialized wireless telephones
First Claim
1. A method of blocking an undesirable call from being routed to an intended phone, comprising:
- receiving, at a mobile positioning center (MPC), a query for routing instructions for an undesirable call associated with a simulated callback phone number from a remote mobile switching center (MSC);
comparing, by said MPC, 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, by said MPC, routing of said undesirable call to said intended phone, by said MPC sending routing instructions including a routing number of a pre-recorded announcement element.
4 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”. 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.
-
Citations
18 Claims
-
1. A method of blocking an undesirable call from being routed to an intended phone, comprising:
-
receiving, at a mobile positioning center (MPC), a query for routing instructions for an undesirable call associated with a simulated callback phone number from a remote mobile switching center (MSC); comparing, by said MPC, 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, by said MPC, routing of said undesirable call to said intended phone, by said MPC sending routing instructions including a routing number of a pre-recorded announcement element. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. Apparatus for blocking an undesirable call from being routed to an intended phone, comprising:
-
means for receiving, at a mobile positioning center (MPC), a query for routing instructions for an undesirable call associated with a simulated callback phone number from a mobile switching center (MSC); means for comparing, by said MPC, said simulated callback phone number with a known list of callback phone numbers to be blocked; and means for blocking, by said MPC, routing of said undesirable call to said intended phone if a match is made by said means for comparing, by said MPC sending routing instructions including a routing number of a pre-recorded announcement element. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. Apparatus for blocking an undesirable wireless call from being routed, comprising:
-
a module to compare a callback number associated with a received, by a mobile positioning center (MPC), query for routing instructions for an undesirable call to entries in a blocked phone number list; and if a match is made between said callback number and an entry in said blocked phone number list, blocking routing, by said MPC, of said undesirable wireless call to an intended phone, by said MPC sending routing instructions including a routing number of a pre-recorded announcement element. - View Dependent Claims (14, 15)
-
-
16. Apparatus for blocking an undesirable wireless call from being routed, comprising:
-
means for comparing, by a mobile positioning center (MPC), a callback number associated with a received query for routing instructions for an undesirable call to entries in a blocked phone number list; and means for blocking routing, by MPC, of said undesirable wireless call to an intended phone if a match is made between said callback number and an entry in said blocked phone number list, by said MPC sending routing instructions including a routing number of a pre-recorded announcement element. - View Dependent Claims (17, 18)
-
Specification