Patent ID: 8331900
Filing Date: 2012-12-11
Classification: H04M,H04Q,H04W

Abstract:
1. A method for making an emergency call from a phone via a network entry node to an emergency centre, comprising the steps of: Adding emergency information in a postfix to an emergency number when the emergency number is entered; Sending the emergency number with the postfix to the network entry node; Receiving an emergency number with the postfix by the network entry node; Removing the postfix from the emergency number with the postfix; Adding the postfix to an optional parameter field in an ISDN User Part-Initial Address Message; Sending the ISDN User Part-Initial Address Message for setting up the connection to the emergency centre; Receiving the contents of the ISDN User Part-Initial Address Message for setting up the connection to the emergency centre, by the emergency centre; Extracting the emergency information in the postfix in the optional parameter field; and, Displaying the emergency information to an emergency operator.