Abstract: A mobile station is located and paged for a circuit-switched connection in a GSM system which supports data packet switching (GPRS) services. A table held by the SGSN is provided for locating a mobile station where the mobile has moved from the Routing Area in which it was last located to a cell within the same Location Area which does not support GPRS services. The GSM system comprises a plurality of base station controllers (BSS) serving cells in a Location Area (LA), a circuit-switch control (MSC/VLR) for establishing circuit-switched connections to mobile stations within the Location Area, and a packet control (SGSN) for establishing data packet-switching with mobile stations within one or more Routing Areas (RA) within the Location Area.

Abstract: In order to ensure that a mobile station is located and paged for a circuit-switched connection in a GSM system which supports data packet switching (GPRS) services, a specific means, a table held by the SGSN, is provided for locating a mobile station in the case where the mobile has moved from the Routing Area in which it was last located to a cell within the same Location Area which does not support GPRS services. The GSM system comprises a plurality of base station controllers (BSS) serving cells in a Location Area (LA), a circuit-switch control (MSC/VLR) for establishing circuit-switched connections to mobile stations within said Location Area, and a packet control (SGSN) for establishing data packet-switching with mobile stations within one or more Routing Areas (RA) within the Location Area.