Unstructured Supplementary Service Data (USSD)
TS 02.90Rel-7Services2GIntermediate
Defines stage 1 description of USSD for GSM PLMNs, covering mobile and network initiated operations, alphabet handling, and service code allocation.
Protocol Definition
Document Type
Technical Specification
Network Layer
Services
Subcategory
Supplementary Services
Business Impact
Medium
Key Technologies
GSMUSSD
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View the complete text of 3GPP TS 02.90 with table of contents and cross-references.