Methods and system for routing emergency calls through the...

Details Methods and system for routing emergency calls through the... Methods and system for routing emergency calls through the...

2008-04-29

2008-04-29

Chan, Wing (Department: 2619)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S466000, C370S389000, C370S401000, C379S037000, C379S045000

Reexamination Certificate

active

07366157

ABSTRACT:
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).

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