Emergency call handling in a voice-over-packet environment
First Claim
1. A method of routing an emergency call received at a network element, comprising:
- determining a directory number associated with a communication device having originated the emergency call;
consulting a local database to obtain routing information associated with the directory number; and
directing the call and the routing information over a path dedicated to emergency calls.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of routing an emergency call received at a network element. The method comprises determining a directory number associated with a communication device having originated the emergency call, consulting a local database to obtain routing information associated with the directory number, and directing the call and the routing information over a path dedicated to emergency calls. Also, a network element which comprises the database as well as a control entity, the control entity being operative for receiving an incoming call originated by one of the communication devices, determining the directory number associated with the communication device having originated the call, determining whether the call is an emergency call and, responsive to the call being an emergency call, accessing the database to obtain the routing information related to the directory number and directing the call as well as the routing information over a trunk group dedicated to emergency calls.
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Citations
25 Claims
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1. A method of routing an emergency call received at a network element, comprising:
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determining a directory number associated with a communication device having originated the emergency call; consulting a local database to obtain routing information associated with the directory number; and directing the call and the routing information over a path dedicated to emergency calls. - View Dependent Claims (2, 3, 4)
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5. A network element for use in a network that provides voice-over-packet services to a plurality of communication devices, each of the communication devices being associated with a respective directory number, the network element comprising:
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a database that relates routing keys to respective directory numbers; a control entity operative for; receiving an incoming call originated by one of the communication devices; determining the directory number associated with the communication device having originated the call; determining whether the call is an emergency call; responsive to the call being an emergency call; (i) accessing the database to obtain the routing key related to the directory number; and (ii) directing the call and the routing key obtained at (i) towards a gateway over a trunk group dedicated to emergency calls, the gateway connecting the network element to a dedicated emergency network. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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13. A network architecture for providing voice-over-packet services to a plurality of communication devices, each of the communication devices being associated with a respective directory number, the network architecture comprising:
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(a) a packet switch; (b) a gateway connected to the packet switch and connectable to a circuit-switched emergency network; (c) a database that relates individual directory numbers to respective routing keys; (d) wherein the packet switch is operative for; receiving an incoming emergency call from one of the communication devices; determining the directory number associated with the communication device having placed the emergency call; accessing the database to obtain the routing key related to the directory number determined in the previous step; directing the emergency call, the associated directory number and the associated routing key towards the gateway. - View Dependent Claims (14, 15, 16)
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17. A network architecture for providing voice-over-packet services to a plurality of communication devices, each of the communication devices being associated with a respective directory number, the network architecture comprising:
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(a) a packet switch; (b) a gateway connected to the packet switch and connectable to a circuit-switched emergency network; (c) a database that relates individual directory numbers to respective routing keys; (d) wherein the packet switch is operative for; receiving an incoming call originated by one of the communication devices; determining the directory number associated with the communication device having originated the call; determining whether the call is an emergency call; responsive to the call being an emergency call; (i) accessing the database to obtain the routing key related to the directory number; and (ii) directing the call, the associated directory number and the routing key obtained at (i) towards the gateway. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A computer-readable storage medium comprising instructions for execution by a computer to implement a method of routing an emergency call received at a network element, the method comprising:
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determining a directory number associated with a communication device having originated the emergency call; consulting a local database to obtain routing information associated with the directory number; and directing the call and the routing information over a path dedicated to emergency calls.
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25. A computer-readable storage medium comprising computer-readable program code for execution by a computer in a network element upon receipt of an emergency call, the computer-readable program code comprising:
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computer-readable program code for determining a directory number associated with a communication device having originated an emergency call; computer-readable program code for consulting a local database to obtain routing information associated with the directory number; and computer-readable program code for directing the call and the routing information over a path dedicated to emergency calls.
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Specification