| 摘要 |
<p>A method of registering a satellite telephony user terminal with a system comprising one or more earth stations for communication with said user terminal via one or more satellites; and one or more switch nodes interconnected therewith by a terrestrial network; the method comprising; determining whether data has been received from the terminal, which is indicative of the identity of the user or the user terminal if so, determining therefrom a switch node to be used for communication with that terminal; and allocating that switch node as the node via which calls to and from the user terminal should be directed; if not; determining whether data has been received from the terminal, which is indicative of a switch node to be used for communication with that terminal and not of the identity of the user or the user terminal; and allocating that switch node as the node via which calls to and from the user terminal should be directed; if not; allocating a said switch node on other criteria.</p> |
