In-band signaling for routing
First Claim
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1. A method for routing a telephone call in a network comprising steps of:
- (a) attaining, at a first network destination point, routing data associated with the call other than origination identification or first destination identification;
(b) forwarding the routing data in-band with the call to a second network point;
(c) accessing the routing data at the second network point; and
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(d) using the routing data to select a third network destination for the call.
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Abstract
Telephone call routing in networks is provided by forwarding routing data other than origination identification and destination identification in-band with calls, and using the in-band data at call destinations to do further routing. In some embodiments negotiation is accomplished between routers at different points in the network based on the in-band routing data. Practice of the invention extends to intelligent telephony networks and as well to simulated telephone calls between computers in wide area data networks, such as the Internet and Intranets.
1226 Citations
12 Claims
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1. A method for routing a telephone call in a network comprising steps of:
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(a) attaining, at a first network destination point, routing data associated with the call other than origination identification or first destination identification; (b) forwarding the routing data in-band with the call to a second network point; (c) accessing the routing data at the second network point; and
;(d) using the routing data to select a third network destination for the call. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A routing system for telephone calls in a network comprising:
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a first router associated with a first network destination point; and a second router associated with a second network destination point; wherein, for a call received at the first network destination point, the first router writes routing data other than call origination identification or first destination identification into one or more data fields conventionally dedicated to other than the routing data, and the second router at the second network destination point uses the routing data from the one or more data fields to further route the call, wherein the network is an intelligent telephony network, the first destination point is a service control point (SCP) and the second network destination point is a computer-telephony integrated (CTI) telephony switch at a call center, and wherein the first router and the second router negotiate based on the data written by the first router into the one or more data fields. - View Dependent Claims (9, 10, 11, 12)
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Specification