TS 03.90 – Unstructured Supplementary Service Data (USSD)
3GPP TS 03.90 is the 3GPP Technical Specification for Unstructured Supplementary Service Data (USSD). It is published in 4 releases (Ph2 to R98); the latest version is 7.0.0 in R98.
Defines USSD mechanism for transparent communication between MS users and PLMN operator applications, enabling development of PLMN-specific supplementary services.
Releases and versions of TS 03.90
| Release | Latest version | Links |
|---|---|---|
| R98 | 7.0.0 | Read · Download (3GPP) |
| R97 | 6.0.0 | Read · Download (3GPP) |
| R96 | 5.0.0 | Read · Download (3GPP) |
| Ph2 | 4.1.1 | Read · Download (3GPP) |
Scope of TS 03.90
Category: Services (Supplementary Services). Technology generation: 2G. Network layer: Services.
Who should read this specification?
- Network operators
- Device manufacturers
- Regulators and standards bodies
Implementation notes
Complexity level: Intermediate. Implementation difficulty: Medium.
Key technologies
Other specifications in the 03 series
- TS 03.85 Closed User Group Supplementary Service
- TS 03.86 Advice of Charge Supplementary Services
- TS 03.87 User-to-User Signalling Supplementary Services
- TS 03.88 Call Barring Services Stage 2 Description
- TS 03.91 Explicit Call Transfer Supplementary Service
- TS 03.93 Completion of Calls to Busy Subscriber
- TS 03.96 Calling Name Presentation Supplementary Service
- TS 03.97 Multiple Subscriber Profile Phase 1
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 03.90?
3GPP TS 03.90 is the 3GPP Technical Specification for Unstructured Supplementary Service Data (USSD). Defines USSD mechanism for transparent communication between MS users and PLMN operator applications, enabling development of PLMN-specific supplementary services.
Which 3GPP releases include TS 03.90?
TS 03.90 is published in 4 releases, from Ph2 to R98. The latest version on 3GPP Explorer is 7.0.0 (R98).
What category does TS 03.90 belong to?
TS 03.90 belongs to the Services (Supplementary Services) category of 3GPP specifications. It applies to 2G networks.
View the full specification with interactive table of contents, version history, and AI analysis.
Read Full Specification →