Providing a supplementary service in a mobile communications system
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United States of America Patent
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Oct 5, 2004
Grant Date -
N/A
app pub date -
Oct 31, 2000
filing date -
Oct 31, 2000
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A mobile communications system includes a system controller that provides access control for mobile stations within the network controlled, by the system controller. In one example, the mobile communications network is a General Packet Radio Service (GPRS) network. The system controller provides access to a packet-based data network. In addition, the system controller enables prepaid short message service (SMS), in which mobile stations can originate or receive short messages according to the prepaid SMS. A flag kept in a home location register (HLR) stores a field to indicate if the user has subscribed to prepaid SMS. In one embodiment, the field is an access point name (APN) field according to the General Packet Radio Service (GPRS) protocol.
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