| 摘要 |
The invention provides a gateway system for an Internet telecommunication system, wherein said gateway system is adapted to connect at least one telephone network to the Internet and to thereby facilitate telephony interworking, over the Internet, and to bridge Internet voice protocols to voice protocols of said at least one telephone network, wherein said system includes a gateway locator module adapted to locate that one of a plurality of gateways which is best suited for a particular call, and wherein said gateway locator module is adapted to translate a dialed number for a telephone call into a prioritized list of preferred gateways for that call, and to locate that one of said set of preferred gateways that is available for the call and has a priority higher than other available gateways. The gateway having the highest priority is used for the call and, in the event that said gateway having the highest priority is unavailable, the other gateways, of lower priority, are tried, in turn, in accordance with their priority listing, until an available gateway is located for the call.
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