发明名称 Method and apparatus for establishing communications between packet-switched and circuit-switched networks
摘要 A method and apparatus for enabling communication between packet-switched data networks and circuit-switched communication networks utilizes the existing domain name system infrastructure of the Internet to resolve traditional PSTN telephone numbers into domain names, and, using one or more domain name servers, locate the network protocol address of a gateway capable of connecting an executing task on the packet-switched data network to the desired terminating apparatus on the circuit switched communication network. Also disclosed is a gateway architecture capable of performing the cross network connections as well as domain name server architecture which stores the segments of a telephone number, such as country code, area code and exchange, in a hierarchical tree configuration.
申请公布号 US6347085(B2) 申请公布日期 2002.02.12
申请号 US19970911133 申请日期 1997.08.14
申请人 NETSPEAK CORPORATION 发明人 KELLY KEITH C.
分类号 H04L12/64;H04L29/12;H04M7/00;H04Q3/00;(IPC1-7):H04L12/66 主分类号 H04L12/64
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