22.0903GPPStage 1TSUnstructured Supplementary Service Data (USSD)
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non‑specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
 3GPP TS 21.905: "Vocabulary for 3GPP Specifications".
 3GPP TS 22.004: "General on supplementary services".
 3GPP TS 22.030: "Man‑Machine Interface (MMI) of the Mobile Station (MS)".
 3GPP TS 23.038: "Alphabets and language-specific information".
 3GPP TS 24.080: "Mobile radio interface layer 3 supplementary services specification Formats and coding".