Abstract: A satellite-based communication system (1) comprises a router system (6) which receives from a switching unit (3) via a satellite system (4) network addressing information associated with communication terminals (2) connected to the switching unit (3). The network addressing information of the communication terminals (2) are stored in the router system (6) assigned to telephone numbers associated with the communication terminals (2). For enabling an exchange unit (7) to route via the satellite link (40) received data to the communication terminal (2), the router system (6) transmits to the exchange unit (7) the network addressing information associated with the communication terminals (2) connected to the switching unit (3). Hence, data can be routed flexibly in the satellite-based communication system (1) between communication terminals (2, 2?) which are not configured for satellite communication and which are used by mobile users who may move in areas covered by different satellites (43).

Abstract: A satellite-based communication system (1) comprises a router system (6) which receives from a switching unit (3) via a satellite system (4) network addressing information associated with communication terminals (2) connected to the switching unit (3). The network addressing information of the communication terminals (2) are stored in the router system (6) assigned to telephone numbers associated with the communication terminals (2). For enabling an exchange unit (7) to route via the satellite link (40) received data to the communication terminal (2), the router system (6) transmits to the exchange unit (7) the network addressing information associated with the communication terminals (2) connected to the switching unit (3). Hence, data can be routed flexibly in the satellite-based communication system (1) between communication terminals (2, 2?) which are not configured for satellite communication and which are used by mobile users who may move in areas covered by different satellites (43).