TS 31.103 – IM Services Identity Module Specification
3GPP TS 31.103 is the 3GPP Technical Specification for IM Services Identity Module Specification. Its official 3GPP title is “Characteristics of the”. It is published in 12 releases (Rel-8 to Rel-19); the latest version is 19.1.0 in Rel-19.
Defines the ISIM application on UICC cards, including IMS identities, files, security functions, commands, and the UICC-terminal interface.
Releases and versions of TS 31.103
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.1.0 | Read · Download (3GPP) |
| Rel-18 | 18.3.0 | Read · Download (3GPP) |
| Rel-17 | 17.0.0 | Read · Download (3GPP) |
| Rel-16 | 16.1.0 | Read · Download (3GPP) |
| Rel-15 | 15.6.0 | Read · Download (3GPP) |
| Rel-14 | 14.6.0 | Read · Download (3GPP) |
| Rel-13 | 13.2.0 | Read · Download (3GPP) |
| Rel-12 | 12.2.0 | Read · Download (3GPP) |
| Rel-11 | 11.2.0 | Read · Download (3GPP) |
| Rel-10 | 10.3.0 | Read · Download (3GPP) |
| Rel-9 | 9.4.0 | Read · Download (3GPP) |
| Rel-8 | 8.6.0 | Read · Download (3GPP) |
Scope of TS 31.103
Category: Services (IMS). Technology generation: Multi-Gen. Network layer: UE.
Who should read this specification?
- Network operators
- Device manufacturers
- Regulators and standards bodies
- Researchers and academics
Implementation notes
Complexity level: Advanced. Implementation difficulty: High.
Key technologies
Specifications referenced by TS 31.103
- TS 25.101 UTRA FDD UE RF Requirements
- TS 23.228 IP Multimedia Core Network Subsystem
- TS 33.203 IMS Security Features and Mechanisms
- TS 24.228 IMS SIP Signaling Flows Examples
- TS 23.038 Character Sets, Languages and Message Handling Requirements for SMS, CBS and USSD
- 51.011 Specification of the Subscriber Identity Module - Mobile Equipment (SIM-ME) interface
- TS 21.111 USIM and UICC Requirements for 3G
- TS 22.101 Service Principles for PLMNs
- TS 33.220 Generic Authentication Architecture (GAA) Security
- TS 33.110 UICC-Terminal Key Establishment
- TS 23.040 SMS Technical Realization for GSM/UMTS/EPS/5GS
- TS 31.102 USIM Application Specification
Specifications that reference TS 31.103
- TS 23.228 IP Multimedia Core Network Subsystem
- TS 33.220 Generic Authentication Architecture (GAA) Security
- TS 31.102 USIM Application Specification
- TS 33.203 IMS Security Features and Mechanisms
- TS 22.228 IP Multimedia Service Requirements
- TS 31.111 USIM Application Toolkit (USAT) Specification
- TS 24.174 Multi-Device & Multi-Identity in IMS Protocol
- TS 31.116 SIM/USIM Remote Management Specification
- TS 24.167 3GPP IMS Management Object
- TS 24.186 IMS Data Channel and AR Communication
- TS 24.341 SMS over IP protocol details
- TS 31.130 (U)SIM Application Programming Interface
Other specifications in the 31 series
- TS 31.101 UICC-Terminal Interface Specification
- TS 31.102 USIM Application Specification
- TS 31.104 HPSIM Application Specification
- TS 31.105 Slice Subscriber Identity Module (SSIM) Application
- TS 31.111 USIM Application Toolkit (USAT) Specification
- TS 31.112 USAT Interpreter System Architecture and Functionality
Frequently asked questions
What is 3GPP TS 31.103?
3GPP TS 31.103 is the 3GPP Technical Specification for IM Services Identity Module Specification. Defines the ISIM application on UICC cards, including IMS identities, files, security functions, commands, and the UICC-terminal interface.
Which 3GPP releases include TS 31.103?
TS 31.103 is published in 12 releases, from Rel-8 to Rel-19. The latest version on 3GPP Explorer is 19.1.0 (Rel-19).
What category does TS 31.103 belong to?
TS 31.103 belongs to the Services (IMS) category of 3GPP specifications. It applies to Multi-Gen networks.
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