In-band signaling for routing

摘要

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.

主权项

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; (d) using the routing data to select a third network destination for the call.