| 摘要 |
A satellite telephone system for communication between a fixed network ( 4 ) and a moveable network ( 1 ) on board a vehicle, has means for suspending operation of the moveable network, for example when the moveable network could interfere with a fixed network, during safety-critical stages of a flight, or to enforce "quiet" periods on board. When operation of the moveable network ( 1 ) is suspended a control signal is transmitted to the fixed network ( 4 ), causing the fixed network ( 4 ) to intercept calls directed to the moveable network, thereby avoiding unnecessary signal traffic over the satellite link ( 3, 6, 13 ). The moveable network may be a wireless network (FIGS. 1, 2 ), or a wired network (FIG. 4 ).
|
