Patent ID: 11877255
Assignee: DISH WIRELESS L.L.C.
Field: Digital communication (Electrical engineering)
Classification: CPC H  B  G | IPC B  G  H

Claim 15:
16. A method in a mobile telephony device, the method comprising:
receiving initiation of a testing cycle;
in response to receiving the initiation, irrespective of any subsequent user input to the mobile telephony device:
retrieving a present global positioning system (GPS) location of the mobile telephony device;
initiating an emergency telephone call to which is attached header information that:
indicates a telephone number at which the mobile telephony device receives telephone calls and non-telephony messages, and
contains location information from which a location can be calculated for the mobile telephony device as part of processing the emergency telephone call;

receiving a non-telephony message automatically transmitted to the telephone number of the mobile telephony device;
extracting from the received message a location calculated for the mobile telephony device as part of processing the emergency telephone call;
storing the extracted calculated location together with the retrieved GPS Location;
determining a distance between the extracted calculated location and the retrieved GPS location;
storing the determined distance together with the extracted calculated location and the retrieved GPS location;
determining whether the determined distance is larger than a threshold distance; and
storing an indication of whether the determined distance is larger than the threshold distance together with the determined distance, the extracted calculated location, and the retrieved GPS location.