| 摘要 |
There is provided a method and apparatus for determining and optimizing a transmission route for a phone call. The phone call may be either local or long distance. For a local phone call the voice data is transmitted via known local methods. For a long distance phone call, middleware determines an optimal internet terminal service provider for carrying or transmitting the voice data. The middleware determines optimal internet terminal service provider by performing a comparative analysis of several internet terminal service providers according to cost and transmission quality.
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