| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a home gateway device that dissolves a disadvantage that the processing burden of a DNS server grows, specifies a telephone number of which the content of destination information registered in the DNS server may be opened to the outside and a telephone number which is not desired to be opened to the outside by every telephone number on the user side, and thus assures privacy protection of a user in a registration work of an external NAPTR record to the DNS server. <P>SOLUTION: A HGW device 6 is communication-connected with the DNS server 3 which stores and manages the telephone number and the external NAPTR record corresponding to the telephone number, and stores and connects a plurality of extension terminals 4. The HGW device 6 has: an NAPTR record creation part 16B which creates internal NAPTR records of all the extension terminals; an internal NAPTR memory area 15B which stores the created internal NAPTR records; an external NAPTR memory area 15C which stores an external NAPTR record of which the disclosure to the DNS server is allowed among the internal NAPTR records; and a self NAPTR record notification part 14A which registers the external NAPTR record in the DNS server by associating the external NAPTR record with the telephone number by notifying the DNS server of the external NAPTR record. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
