Abstract: A method and arrangement for processing short messages in a mobile services switching centre (GMSC) of a cellular radio network. The method comprises the following steps: an A-subscriber (AMS) sends a short message provided with the routing address of a B-subscriber (BMS); the routing address contained in the short message is checked in the mobile services switching centre (GMSC); and when the routing address is that of the B-subscriber (BMS), the mobile services switching centre (GMSC) request the routing information of the B-subscriber (BMS) from the home location register (HLR); if the B-subscriber can be reached, the home location register (HLR) sends the routing information to the requesting mobile services switching centre (GMSC); and the mobile services switching centre (GMSC) routes the short message to the B-subscriber (BMS) on the basis of the routing information received.

Abstract: A method for updating subscriber data in a cellular radio system, and a corresponding cellular radio system, in which method a visitor location register (VLR) receives from a home location register (HLR) of the cellular radio system a restart indication (HLR Reset); and changes the restart number (HLR Reset Num) of the home location register which sent the restart indication in the home location register list of the visitor location register; when the visitor location register (VLR) receives from a mobile exchange (MSC) an indication of the establishment of a radio connection with a subscriber (MS), the visitor location register (VLR) compares the subscriber-specific restart number of the subscriber (MS) with the home location register restart number (HLR Reset Num) of the subscriber (MS), and updates the location data of the subscriber on the basis of the comparison.