| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce a time required before resuming data communication when switching data communication passing through NAT to a new communication route. <P>SOLUTION: When a communication terminal 10 switches a data communication route used for data communication with an opposite communication terminal 20 to a new communication route, the communication terminal 10 selects, as the data communication route, a communication route having the highest order of priority of communication routes determined based on an ICE system, from among communication routes other than the communication route which is selected as a data communication route and of which connectability with the opposite communication terminal 20 is confirmed, and switches to the new communication route, to continue the data communication with the opposite communication terminal 20. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
