EMERGENCY SERVICES FOR PACKET NETWORKS

摘要

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.

主权项

1. A method of controlling access to an emergency service, comprising:
receiving a communication session initiation request from an originator, the communication session initiation request requesting initiation of a communication session with a terminating element associated with the emergency service; determining whether the originator is authorized to initiate the communication session; when the originator is determined to be authorized to initiate the communication session:
providing an indication that the originator is authorized to initiate the communication session in the communication session initiation request; andforwarding the communication session initiation request including the indication toward the terminating element associated with the emergency service;at least one of the receiving of the communication session initiation request and the forwarding of the communication session initiation request being via a packet network.