{"id":5600,"number":"23.506","type":"TS","title":"TISPAN; IP Multimedia Subsystem (IMS); Stage 2 description [3GPP TS 23.228 Release 7, modified]","series":23,"status":"Under change control","initial_release":"Rel-8","primary_group":"S2","secondary_groups":[],"portal_id":854,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=854","dynareport_url":"https://www.3gpp.org/dynareport/23506.htm","publication_scope":null,"radio_technologies":[],"first_seen_at":"2026-09-16T11:04:49.349344+00:00","updated_at":"2026-10-16T09:34:47.275473+00:00","raw_metadata":{"source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=854","bibliography_source":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv"},"detail_synced_at":"2026-10-07T23:07:55.603205+00:00","versions":[{"release":"Rel-8","version":"8.1.0","meeting":"SA#41","upload_date":"2008-09-24","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.506/23506-810.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":37093,"version_status":null},{"release":"Rel-8","version":"8.0.0","meeting":"SA#38","upload_date":"2007-12-11","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.506/23506-800.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-8","version":"2.0.4","meeting":"SA#38","upload_date":"2007-12-11","comment":"SP-070935","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.506/23506-204.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"2.0.3","meeting":"SA#38","upload_date":null,"comment":"ETSI TS 182 006","official_file_url":null,"source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"}],"release_presence":[{"release":"Rel-8","first_version_date":"2007-12-11","latest_version_date":"2008-09-24","first_version":"2.0.3","latest_version":"8.1.0","version_count":4}],"classifications":[],"work_items":[{"uid":380072,"acronym":"IMS_Comm_Mtce7","effective_acronym":"IMS_Comm_Mtce7","title":"SA1,SA2 part of Maintenance of TISPAN release 1 common IMS","responsible_groups":["S1"],"release":"1 common IMS","status":"PCG approved","wi_level":"Building Block (2nd level)","type":"Work Item","first_release":null,"last_release":null,"provenance_type":"official","source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=854","association_sources":[],"association_status":"historical_unverified"},{"uid":380044,"acronym":"IMS_Comm_Mtce8","effective_acronym":"IMS_Comm_Mtce8","title":"Maintenance of TISPAN release 2 common IMS","responsible_groups":["S2"],"release":"2 common IMS","status":"PCG approved","wi_level":"Building Block (2nd level)","type":"Work Item","first_release":null,"last_release":null,"provenance_type":"official","source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=854","association_sources":[],"association_status":"historical_unverified"},{"uid":1273,"acronym":"IMS","effective_acronym":"IMS","title":"Provisioning of IP-based multimedia services","responsible_groups":["S1","S2","S3","S5","R5"],"release":"Rel-5","status":"Awaiting approval","wi_level":"Feature (1st level)","type":"Work Item","first_release":null,"last_release":null,"provenance_type":"official","source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=854","association_sources":[],"association_status":"historical_unverified"},{"uid":380043,"acronym":"IMS_Comm_Doc","effective_acronym":"IMS_Comm_Doc","title":"Documentation of TISPAN NGN R1 and R2 in 3GPP SA2","responsible_groups":["S2"],"release":"Rel-8","status":"PCG approved","wi_level":"Building Block (2nd level)","type":"Work Item","first_release":"Rel-8","last_release":"Rel-8","provenance_type":"official","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20261012.zip","association_sources":["crdb"],"association_status":"source_tracked"},{"uid":390022,"acronym":"IMS_Corp","effective_acronym":"IMS_Corp","title":"CT1 aspects of IMS_Corp","responsible_groups":["C1"],"release":"Rel-8","status":"PCG approved","wi_level":"Building Block (2nd level)","type":"Work Item","first_release":null,"last_release":null,"provenance_type":"official","source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=854","association_sources":[],"association_status":"historical_unverified"},{"uid":360012,"acronym":"IMS_Corp","effective_acronym":"IMS_Corp","title":"IMS System enhancements for corporate network access","responsible_groups":["S1"],"release":"Rel-8","status":"PCG approved","wi_level":"Feature (1st level)","type":"Work Item","first_release":null,"last_release":null,"provenance_type":"official","source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=854","association_sources":[],"association_status":"historical_unverified"},{"uid":390049,"acronym":"IMS_Corp","effective_acronym":"IMS_Corp","title":"SA1 aspects of IMS_Corp","responsible_groups":["S1"],"release":"Rel-8","status":"PCG approved","wi_level":"Building Block (2nd level)","type":"Work Item","first_release":null,"last_release":null,"provenance_type":"official","source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=854","association_sources":[],"association_status":"historical_unverified"},{"uid":390023,"acronym":"IMS_Corp","effective_acronym":"IMS_Corp","title":"CT4 aspects of IMS_Corp","responsible_groups":["C4"],"release":"Rel-8","status":"PCG approved","wi_level":"Building Block (2nd level)","type":"Work Item","first_release":null,"last_release":null,"provenance_type":"official","source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=854","association_sources":[],"association_status":"historical_unverified"},{"uid":740005,"acronym":"5GS_Ph1","effective_acronym":"5GS_Ph1","title":"5G System - Phase 1","responsible_groups":[],"release":"Rel-15","status":"PCG approved","wi_level":"Feature (1st level)","type":"Work Item","first_release":"Rel-16","last_release":"Rel-16","provenance_type":"parsed","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20260925.zip","association_sources":[],"association_status":"historical_unverified"},{"uid":840054,"acronym":"RACS","effective_acronym":"RACS","title":"Optimisations on UE radio capability signalling","responsible_groups":[],"release":"Rel-16","status":"PCG approved","wi_level":"Feature (1st level)","type":"Work Item","first_release":"Rel-16","last_release":"Rel-16","provenance_type":"parsed","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20260925.zip","association_sources":[],"association_status":"historical_unverified"},{"uid":770050,"acronym":"TEI16","effective_acronym":"TEI16","title":"(Small) Technical Enhancements and Improvements for Rel-16","responsible_groups":[],"release":"Rel-16","status":"PCG approved","wi_level":"Feature (1st level)","type":"Work Item","first_release":"Rel-16","last_release":"Rel-16","provenance_type":"parsed","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20260925.zip","association_sources":[],"association_status":"historical_unverified"}],"change_requests":[{"portal_cr_id":null,"cr_number":"0003","revision":null,"category":"F","impacted_version":"8.1.0","target_release":"Rel-16","title":"Clean-up on TAC information","wg_tdoc":"S2-1908898","wg_status":"withdrawn","tsg_tdoc":null,"tsg_status":null,"new_version":"..","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20260715.zip","detail_synced_at":null},{"portal_cr_id":null,"cr_number":"0004","revision":null,"category":"F","impacted_version":"8.1.0","target_release":"Rel-16","title":"Clarification on the of online charging and offline charging indication on N7 interface","wg_tdoc":"S2-2003185","wg_status":"withdrawn","tsg_tdoc":null,"tsg_status":null,"new_version":"..","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20260715.zip","detail_synced_at":null},{"portal_cr_id":null,"cr_number":"0001","revision":null,"category":"B","impacted_version":"8.0.0","target_release":"Rel-8","title":"Support for Wildcarded public user identity for aggregated UNI support","wg_tdoc":"S2-082714","wg_status":"revised","tsg_tdoc":null,"tsg_status":null,"new_version":"..","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20260715.zip","detail_synced_at":null},{"portal_cr_id":null,"cr_number":"0001","revision":"1","category":"B","impacted_version":"8.0.0","target_release":"Rel-8","title":"Support for Wildcarded public user identity for aggregated UNI support","wg_tdoc":"S2-082774","wg_status":"agreed","tsg_tdoc":"SP-080367","tsg_status":"rejected","new_version":"..","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20260715.zip","detail_synced_at":null},{"portal_cr_id":null,"cr_number":"0002","revision":null,"category":"F","impacted_version":"8.0.0","target_release":"Rel-8","title":"Correction to reflect error detected during ETSI publishing process of TS 186 006","wg_tdoc":"S2-085710","wg_status":"agreed","tsg_tdoc":"SP-080573","tsg_status":"approved","new_version":"8.1.0","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20260715.zip","detail_synced_at":null}],"relationships":[],"relationship_release_evidence_summary":[],"relationship_release_evidence":[],"relationship_release_evidence_meta":{"total":0,"returned_count":0,"limit":100,"truncated":false,"href":"/api/specs/23.506/relationship-evidence"}}