Release ledger
Canonical Atlas record
TS 29.229
Cx and Dx interfaces based on the Diameter protocol; Protocol details
Release evolution
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Use indexed version, Work Item and Change Request evidence to see what changed around this specification. This is an evidence trail, not a clause-by-clause normative diff.
Rel-16 snapshot
Work affecting this release
5 indexed Change Requests · 1 connected Work Item.
Showing 5 CR records from the available cross-release sample. Browse release CR records (JSON) →
CR 0290 — Support of Emergency Number List on Cx
CR 0294 — S-CSCF restoration after registration timer expiry
CR 0308 — WAF and WWSF identity
CR 0291 — Add P-CSCF subscription info to Restoration information
CR 0295 — Support of PCRF-based P-CSCF restoration
Version history
Indexed versions
Showing 60 of 117 indexed versions.
Atlas classifications
Meaning and provenance
No Atlas classifications have been attached yet.
Work Items
Standards work connected to TS 29.229
Rel-4 Emergency call enhancements
Provisioning of IP-based multimedia services
Call control and roaming to support IMS in UMTS
(Small) Technical Enhancements and Improvements for Rel-5
Rel-5 Terminal interfaces
IMS Phase 2
Enhancements to the Cx and Sh interfaces
Rel-6 Operations, Administration, Maintenance and Provisioning (OAM&P)
(Small) Technical Enhancements and Improvements for Rel-6
(IETF) CT1 IMS aspects to support IMS Emergency sessions
PS domain and IMS impacts for supporting IMS Emergency calls (EMC1)
Service Requirements for IP-based emergency calls
Study on Stage 2 for IMS-level solution
CT1 PS domain aspects to support IMS Emergency sessions
Deleted - CT3 PS domain aspects to support IMS Emergency sessions
Deleted - CT3 IMS aspects to support IMS Emergency sessions
Study on Stage 2 for GPRS-level solution
Stage 2 Specification Phase - IMS-level
Deleted - Stage 2 Specification Phase - GPRS-level
Emergency Call Enhancements for IP& PS Based Calls stage 3
CT1 IMS aspects to support IMS Emergency sessions
CT3 aspects of FBI for TISPAN R1
Stage 3 for Voice Call Continuity between CS and IMS (incl. I-WLAN)
Protocol impact of FBI for TISPAN R1
CT1 aspects of FBI for TISPAN R1
System enhancements for Fixed Broadband access to IMS
PacketCable Related aspects
CT4 aspects of FBI for TISPAN R1
IMS Stage 3 IETF Protocol Alignment
Maintenance of TISPAN R1
Study on Multimedia Priority Service
(Small) Technical Enhancements and Improvements for Rel-7
CT4 aspects of Stage 3 for Voice Call Continuity between CS and IMS (incl. I-WLAN)
Study on 3GPP System Architecture Evolution
Security Enhancements for IMS
IMS Stage 3 IETF Protocol Alignment - phase 2
IMS Application Server Service Data Descriptions for AS interoperability
IMS System enhancements for corporate network access
CT4 aspects of IMS_Corp
IMS Restoration Procedures (CT4)
IMS Restoration Procedures
Maintenance of TISPAN R2
CT4 part of Network Attachment Subsystem (NASS) Bundled Authentication
Rel-8 Operations, Administration, Maintenance and Provisioning (OAM&P)
Rel-8 Trace Management
CT1 part of Service Level Tracing in IMS
CT4 part of Service Level Tracing in IMS
Stage 3 Overlap (CT1)
Support of Overlap signalling
Stage 3 Overlap (CT4)
Stage 3 Overlap (CT3)
CT4 part of Stage 3 for PRIOR
IMS Enhancements for support of Packet Cable access
CT4 aspects of PktCbl-Sec
CT3 aspects of PktCbl-Sec
IMS Enhancements for Security Requirements in Support of Cable Deployments
Stage 3 CIMS_3GPP2 (CT4)
Documentation of TISPAN R1 and R2 in CT4
3GPP System Architecture Evolution Specification - Evolved Packet System (non RAN aspects)
(Small) Technical Enhancements and Improvements for Rel-8
(Small) Technical Enhancements and Improvements for Rel-9
Deleted - Registration in Densely-populated area (RED)
(Small) Technical Enhancements and Improvements for Rel-10
Enhancements for Multimedia Priority Service
CT4 part on Stage 3 on enhancements for Multimedia Priority Service
(Small) Technical Enhancements and Improvements for Rel-11
CT4 part of Diameter Overload Control Mechanisms
Deleted - CT4 aspects of CT aspects of IMS registration control (Stage 3)
CT aspects of Web Real Time Communication (WebRTC) Access to IMS
CT4 part of Common for HSS & PCRF solutions
(Small) Technical Enhancements and Improvements for Rel-12
(Small) Technical Enhancements and Improvements for Rel-13
CT4 part of IMS Signalling Activated Trace
(Small) Technical Enhancements and Improvements for Rel-14
(Small) Technical Enhancements and Improvements for Rel-16
Historical association · verification pending(Small) Technical Enhancements and Improvements for Rel-17
IMS Disaster Prevention and Restoration Enhancement
OAM Principles and High-level Requirements
Security for UMTS and GSM Features
Knowledge graph
Related standards
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