System and Method for Re-Routing Calls

摘要

The disclosed embodiments include a system, computer program product, and method for routing a call over a packet network. A call request may be received from a calling party to call a called party at a network address. At least one potential call path over a packet network may be determined to connect the calling party to the called party at the network address. Network performance information associated with each potential call path may be accessed and a determination may be made that each of the call paths are impaired or congested. In response to determining that each of the call paths are impaired or congested, the call may be routed over a call path other than one of the at least one potential call paths to enable the calling party to communicate with the called party.

主权项

1. A method for routing a voice over Internet Protocol (VoIP) call, said method comprising:
receiving from a first network a call request from a calling party to call a called party at a network address of a second network; determining a call path to connect the calling party from the first network to the called party at the network address of the second network, the call path comprising a plurality of network nodes; routing the call via the call path; determining, at one of the network nodes along the call path, and using performance information packets (“PIP packets”) generated by at least some of the plurality of network nodes along the potential call path, that the potential call path is impaired; accessing network performance information associated with a plurality of potential call paths other than the determined call path, the network performance information gathered from PIP packets generated by network nodes along each of the plurality of potential call paths; identifying, at the one of the network nodes along the call path, a modified call path that would provide better performance than the determined call path; and re-routing the call, from the one of the nodes along the call path, over the modified to enable the calling party to communicate with the called party at the network address of the second network.