Patent ID: 7643625

Claim:
A computer-implemented method of altering incoming call controls associated with a first telephone number after a call has been placed to an emergency number from a telephone associated with the first telephone number, the method comprising the steps of: detecting, with a processor, a call from a telephone associated with a first telephone number to a second telephone number that is an emergency call number; modifying, with a processor, incoming call controls associated with the first telephone number to an emergency call processing state based on the detection of the call from the telephone associated with the first telephone number to the second telephone number that is an emergency call number, wherein modifying the incoming call controls comprises: setting, with a processor, an emergency flag associated with the first telephone number; and starting, with a processor, a timer associated with the emergency flag; processing, with a processor, an incoming call to the first telephone number based on whether the incoming call controls are at an emergency call state, wherein processing the incoming call to the first telephone number comprises: determining, with a processor, whether the emergency flag associated with the first telephone number is set; determining, with a processor, whether the timer is active in response to determining the emergency flag associated with the first telephone number is set; and determining, with a processor, how to process the incoming call based on whether the emergency flag associated with the first telephone number is set and whether the time is active; and a predetermined time period after detecting the call to the second telephone number that is an emergency all number, modifying, with a processor, the incoming call controls associated with the first telephone number to remove the emergency call processing state, wherein modifying the incoming call controls associated with the first telephone number comprises: removing, with a processor, the emergency flag associated with the first telephone number; and setting, with a processor, a value of the timer to null.