| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a call control system, a call control apparatus, a terminal device and a call control method in which an optimal communication network can be selected, without making the configurations of the terminal device and the call control apparatus complex. <P>SOLUTION: While referring to information, representing a current status including failure occurrence, or the like, of a communications network held in a communication network current status data holding section 103 at the side of a call control apparatus 100 and information regarding the priority of communications network selection held by an application priority data holding section 202 on the side of a terminal device 200, and is acquired and held by a calling-side information acquiring and holding section 104 at the side of the call control apparatus 100, a communications network optimal to be used for setting the call is selected by a call control section 105 at the side of the call control apparatus 100. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
