发明名称 IP COMMUNICATION NETWORK
摘要 <p><P>PROBLEM TO BE SOLVED: To provide an IP communication network which ensures security and reliability in communication without using dedicated lines or the Internet. <P>SOLUTION: A transfer network includes a plurality of access control devices. Terminals 1 and 2 which are located outside of the transfer network are connected to access control devices 1 and 2 through user communication lines 1 and 2, respectively. The access control devices 1 and 2 include a conversion table 1 (not illustrated) and a conversion table 2 (not illustrated), respectively. The terminal 1 requests connection from the terminal 2 using a telephone number. When an ICS frame 3 arrives at the access control device 2, it is converted into a user frame, the user frame arrives at the terminal 2 through the user communication line 2, and the terminal 1 communicates with the terminal 2 through the transfer network. <P>COPYRIGHT: (C)2007,JPO&INPIT</p>
申请公布号 JP2007174650(A) 申请公布日期 2007.07.05
申请号 JP20060338243 申请日期 2006.12.15
申请人 DISTRIBUTION SYSTEMS RESEARCH INST;MIYAGUCHI KENKYUSHO:KK 发明人 FURUKAWA HISAO;MIYAGUCHI SHOJI
分类号 H04M3/00;H04L12/66;H04L12/70;H04M11/00;H04W8/26 主分类号 H04M3/00
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