Methods and system for routing emergency calls through the internet

摘要

A system ( 100 ) and method for routing an emergency request message from an Internet user ( 50 ) to an emergency-call-answering center ( 31 ) consisting of Public Service Access Points (PSAPs). An emergency request message is transmitted to an IP network ( 60 ) which is received by an emergency call handling function ( 172 ). The emergency call handling function ( 172 ) queries a database ( 170 ) and returns the physical location information associated with the IP address of the user ( 50 ). The call is formatted into a format compatible with the emergency call answering center ( 31 ) and transmitted via the PSTN ( 20 ) to the PSAP ( 36 ) serving the correct emergency service zone for the user ( 50 ).