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TS 04.90 (CT4)
Unstructured Supplementary Service Data (USSD)

3GPP‑Page   ETSI‑search   full‑ToC    
(P) GSM Rel-98 v7.0.1  2000/01  14 p.
(P) GSM Rel-97 v6.0.1  1998/11  14 p.
(P) GSM Rel-96 v5.0.1  1996/11  16 p.
(W-zip) GSM Phase-2 v4.1.1  1994/11  16 p.

Rapporteur:  HODGES, Phil
Descendant:  TS 24.090
See also:  USSD-related TS/TR

This TS gives the stage 3 description of the Unstructured Supplementary Service Data (USSD) operations.

The group of unstructured supplementary service data operations is divided into two different classes:
  • Network initiated USSD operations
  • Mobile initiated USSD operations


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