Method and apparatus for providing local call treatment discrimination for selected calls on a switched telephone network
First Claim
1. A method for providing call treatment discrimination for calls to a specific telephone number in a switched telephone network, comprising steps of:
- configuring the network to route call establishment messages addressed to the directory number to a call control node that is a virtual switching node in the telephone network;
determining at the call control node, on receipt of a call establishment message associated with a call to the directory number, a service resource to which the call should be routed; and
sending into the network from the call control node a call control message to route the call to the service resource.
13 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for efficiently utilizing resources in a switched telephone network by providing call treatment at the closest available resource to the calling party preventing holding up network connection through to the terminating location if resources are not available at call termination equipment to handle a call. The selected calls are locally parked pending the availability of service termination resources to handle the call. The availability of service resources at the termination is determined before a selected call is extended through the network. Advantageously while the call is parked call treatment discrimination can be performed.
12 Citations
39 Claims
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1. A method for providing call treatment discrimination for calls to a specific telephone number in a switched telephone network, comprising steps of:
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configuring the network to route call establishment messages addressed to the directory number to a call control node that is a virtual switching node in the telephone network;
determining at the call control node, on receipt of a call establishment message associated with a call to the directory number, a service resource to which the call should be routed; and
sending into the network from the call control node a call control message to route the call to the service resource. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system for providing call treatment discrimination for calls to a selected directory number in a switched telephone network, comprising:
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at least one local service resource associated with each local calling area in the switched telephone network, the at least one local service resource being adapted to communicate with callers that place the calls;
a call control node having a memory for storing a list containing identifiers of each of the local service resources in the switched telephone network, and a current occupancy of each of the local service resources; and
at least one enhanced integrated services digital network-user part (EISUP) trunk in each local calling area, the EISUP trunk having associated linksets and routesets for routing call control messages associated with the calls to the call control node. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method for providing call treatment discrimination for selected calls in a switched telephone network, comprising steps of:
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selecting a directory number for which calls are to receive local call treatment discrimination;
configuring the network to route call control messages associated with the directory number to a call control node that is a virtual switching node in the switched telephone network;
forwarding the calls from the call control node to service termination equipment associated with the directory number; and
sending a data message from the service termination equipment to instruct the call control node to release the call from the service termination equipment and park the call at a local service resource in an event that service termination resources are not available to serve the call at the service termination equipment. - View Dependent Claims (34, 35, 36, 37, 38, 39)
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Specification