| 摘要 |
Communication quality of bearers towards a 3G system having a PoC server and a proxy server connected thereto, and towards a wireless LAN system is monitored by a 3G bearer IF and a wireless LAN bearer IF of a mobile terminal device. Upon being requested for reference by an application of the mobile terminal device, a routing table of the mobile terminal device is referred. A bearer is selected based on the communication lines (bearers) to a destination, and priority corresponded to the communication quality obtained by the monitoring.
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