Release ledger
Canonical Atlas record
TS 22.173
IP Multimedia Core Network Subsystem (IMS) Multimedia Telephony Service and supplementary services; Stage 1
Release evolution
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Rel-19 snapshot
Work affecting this release
2 indexed Change Requests · 1 connected Work Item.
Showing 2 CR records from the available cross-release sample. Browse release CR records (JSON) →
CR 0138 — Editorial changes for quality improvement
CR 0138 rev.1 — Editorial changes for quality improvement
Version history
Indexed versions
Showing 60 of 79 indexed versions.
Atlas classifications
Meaning and provenance
No Atlas classifications have been attached yet.
Work Items
Standards work connected to TS 22.173
SA1,SA2 part of Maintenance of TISPAN release 1 common IMS
Provisioning of IP-based multimedia services
Rel-5 Terminal interfaces
SA1 aspects of MCIMSTR1
Study on Multimedia Telephony Capabilities for IMS
Deleted - duplicates UID7039 - IMS Multimedia Telephony Service
Stage 3 of MTSI
Stage 1 of MTSI
(Small) Technical Enhancements and Improvements for Rel-7
Stage 1 CIMS_3GPP2
3GPP2 Input to Common IMS
Stage 1 FA
Deleted - IMS Enhancements Rel-8
IMS Multimedia Telephony and Supplementary Services
(Small) Technical Enhancements and Improvements for Rel-8
Merging TISPAN MMTel [requirements] for Common IMS
Stage 1 for Customized Ringing Signal
(Small) Technical Enhancements and Improvements for Rel-9
Stage 1 for eMMTel
Multi-Media Telephony Service enhancements
Completion of Communications on Not Logged-in
Stage 1 for Completion of Communications on Not Logged-in
(Small) Technical Enhancements and Improvements for Rel-10
Stage 1 for Optimized Service Charging and Allocation of Resources in IMS whilst Roaming
(Small) Technical Enhancements and Improvements for Rel-11
Stage 1 for USSD simulation service in IMS
Explicit Communication Transfer Blind (ECT Blind) service interactions
Stage 1 for Explicit Communication Transfer Blind (ECT Blind) service interactions
Stage 1 for Codec for Enhanced Voice Services
Stage 1 for Sequential Flexible Alerting
(Small) Technical Enhancements and Improvements for Rel-12
Awaiting formal work item
(Small) Technical Enhancements and Improvements for Rel-13
(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
Verification-modified Calling Name Display
Enhanced Calling Name Service Analytics Interworking
(Small) Technical Enhancements and Improvements for Rel-19
(Small) Technical Enhancements and Improvements for Rel-20
6G Service Requirements
Knowledge graph
Related standards
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