08000318 is referenced by 211 patents and cites 374 patents.

A system and method that establishes a phone call over a packet network. The process may include receiving a call request from an originating call device on a packet network to call a terminating call device. A first transmission path may be determined between the originating and terminating call devices. Status of a terminating segment at a first terminating trunk may be determined and, if the status of the terminating segment at the first terminating trunk is within a first range, a call between the originating and terminating call device may be established via the first terminating call trunk. Otherwise, if the status of the terminating segment at the first terminating trunk is within a second range, a second transmission path via a second terminating trunk between the originating and terminating call devices may be made.

Title
System and method for call routing based on transmission performance of a packet network
Application Number
11/809404
Publication Number
8000318 (B2)
Application Date
May 31, 2007
Publication Date
August 16, 2011
Inventor
Robert J Morrill
Overland Park
KS, US
Michael K Bugenhagen
Olathe
KS, US
William L Wiley
Overland Park
KS, US
Agent
SNR Denton US
Assignee
Embarq Holdings Company
KS, US
IPC
H04L 12/66
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