Emergency services for packet networks

Details Emergency services for packet networks Emergency services for packet networks

2011-03-01

2011-03-01

Nguyen, Quynh H (Department: 2614)

Telephonic communications

Plural exchange network or interconnection

With interexchange network routing

C379S037000, C379S045000, C370S352000, C709S204000

Reexamination Certificate

active

07899174

ABSTRACT:
The present invention provides a technique for facilitating emergency services via packet networks. Emergency service providers will implement emergency proxies to ensure that proper call setup requests for emergency services are forwarded to the appropriate entities, even if those entities are in overload conditions. The emergency proxies may authenticate and filter call setup requests to ensure that only proper call setup requests are forwarded to help prevent such overload conditions. The emergency proxies may operate solely in a packet network, as well as at the interface between a packet network and a circuit-switched network to assist in call setup requests originating from either the packet network or the circuit-switched network.

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