Content for TS 23.090 Word version: 18.0.0
5 Network initiated unstructured supplementary service
5.1 Handling of network initiated USSD
5.2 Functions and information flows
5.3 Information stored in the HLR
5.4 Information stored in the VLR
5.5 Handover
5.6 Cross-phase compatibility
5 Network initiated unstructured supplementary service p. 6
5.1 Handling of network initiated USSD p. 6
5.2 Functions and information flows p. 6
5.2.1 Invoking unstructured SS operation from the HLR p. 7
5.2.2 Invoking unstructured SS operation from the VLR p. 7
5.2.3 Invoking unstructured SS operation from the MSC p. 7
5.2.4 Forwarding USSD operations p. 7
5.2.5 Handling of unstructured SS operation at the MS p. 8
5.3 Information stored in the HLR p. 15
5.4 Information stored in the VLR p. 15
5.5 Handover p. 15
5.6 Cross-phase compatibility p. 16
