| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a call session control server assignment system capable of equalizing loads of respective S-CSCF servers (call session control server). <P>SOLUTION: An HSS server 40 includes an S-CSCF selection table 41A that stores priority information indicating the order of priority at the time of assigning a user terminal in response to the current operation condition of the S-CSCF servers 20, 21, 22, ..., in correspondence with the respective call session control servers. When an I-CSCF server 30 sends an interrogation to the HSS server 40 for determining an S-CSCF server for registering the user terminal and administering a call session control for the registered user terminal at the registration time of the user terminal, a reference is made to the S-CSCF selection table 41A for selecting an S-CSCF server to be assigned in response to the current operation condition of the respective S-CSCF servers 20, 21, 22, ..., and also the information in the S-CSCF selection table 41A is sent back to the I-CSCF server 30. <P>COPYRIGHT: (C)2009,JPO&INPIT |
