TR 33.929-1 – LI Implementation Guidance for IMS-based Services
3GPP TR 33.929-1 is the 3GPP Technical Report for LI Implementation Guidance for IMS-based Services. Its official 3GPP title is “Lawful Interception (LI) implementation guidance”. It is part of 3GPP Rel-19 (version 19.0.0).
Informative guidance on Lawful Interception for IMS services: architecture topologies, call flows, roaming (LBO/HR), conferencing, and IMS Data Channel, supporting TS 33.126/127/128.
Releases and versions of TR 33.929-1
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.0.0 | Read · Download (3GPP) |
Scope of TR 33.929-1
Category: Security (Lawful Interception). Technology generation: Multi-Gen. Network layer: Services.
Who should read this specification?
- Network operators
- Device manufacturers
- Regulators and standards bodies
Implementation notes
Complexity level: Advanced. Implementation difficulty: Medium.
Key technologies
Other specifications in the 33 series
- TR 33.924 GBA-OpenID Interworking Specification
- TR 33.926 Generic Network Product Security Assurance
- TR 33.927 Security Assurance for Virtualized Network Products
- TR 33.928 LI ADMF Provisioning Logic for LI Functions
- TR 33.929-2 LI for IMS-based STIR/SHAKEN
- TR 33.929-3 LI Implementation Guidance: Messaging Services
- TR 33.929-4 LI Implementation Guidance for 5G Core Data
- TR 33.929-5 LI ID Association Caching Guidance
Frequently asked questions
What is 3GPP TR 33.929-1?
3GPP TR 33.929-1 is the 3GPP Technical Report for LI Implementation Guidance for IMS-based Services. Informative guidance on Lawful Interception for IMS services: architecture topologies, call flows, roaming (LBO/HR), conferencing, and IMS Data Channel, supporting TS 33.126/127/128.
Which 3GPP releases include TR 33.929-1?
TR 33.929-1 is part of 3GPP Rel-19. The latest version on 3GPP Explorer is 19.0.0 (Rel-19).
What category does TR 33.929-1 belong to?
TR 33.929-1 belongs to the Security (Lawful Interception) category of 3GPP specifications. It applies to Multi-Gen networks.
View the full specification with interactive table of contents, version history, and AI analysis.
Read Full Specification →