A method and apparatus to calculate probabilistic routing parameters to more efficiently route telephone calls from an origin to one of a plurality of call centers. In particular, the rate of calls routed to each gate of each call center is measured for a previous time frame and used to estimate the...http://www.google.com.tw/patents/US6115462?utm_source=gb-gplus-share專利 US6115462 - Method and apparatus for efficient call routing
