Patent ID: 7463880

Claim:
A method for originating an emergency call on a wireless communication device, comprising the steps of: (a) attempting to originate an emergency call on a first system; (b) receiving a global service redirection message (GSRM) from the first system, the GSRM comprising a return if failure (RIF) flag and a redirect list of alternate systems; (c) scanning the redirect list for available alternate systems; (d) if the alternate systems of the redirect list are not available, then attempting to originate the emergency call on the first system; (e) if the first system is not available, then attempting to originate the emergency call on an E911 list systems; (f) if the E911 list systems are not available, then attempting to originate the emergency call on the first system; (g) if the first system is not available, then entering an emergency silent redial scan mode to continue attempting origination on the first system if RIF is set to true; and (h) if the first system is not available, then repeating steps (b) through (g) if RIF is set to false.