| 摘要 |
PROBLEM TO BE SOLVED: To provide a load distribution device capable of changing a transfer destination according to a load in an SIP server for increasing precision of load distribution in a VoIP system based on an SIP. SOLUTION: In this load distribution device 5, a plurality of SIP terminals 1 and 2 and a plurality of SIP servers 3 and 4 are connected mutually via a network. The load distribution device 5 is constructed of a registration request identification part 51 identifying a registration request to the SIP servers, a registration request duplication part 52 duplicating the registration request from the identified SIP terminal, a distribution control part 54 transmitting the duplicated registration requests to all the SIP servers, a distribution information management part 53 managing priority connection server information of the SIP terminals, and an SIP server load monitoring part 55 monitoring a load in each of the SIP servers. The distribution control part 53 transfers a session from the SIP terminal to a priority connection server when the priority connection server matching the calling SIP terminal is in a low load condition. COPYRIGHT: (C)2007,JPO&INPIT
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