{"id":5893,"number":"23.892","type":"TR","title":"IP Multimedia Subsystem (IMS) centralized services","series":23,"status":"Under change control","initial_release":"Rel-8","primary_group":"S2","secondary_groups":[],"portal_id":971,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=971","dynareport_url":"https://www.3gpp.org/dynareport/23892.htm","publication_scope":null,"radio_technologies":[],"first_seen_at":"2026-09-16T11:04:50.416045+00:00","updated_at":"2026-10-16T09:34:55.609033+00:00","raw_metadata":{"source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=971","bibliography_source":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv"},"detail_synced_at":"2026-10-07T23:33:54.555394+00:00","versions":[{"release":"Rel-8","version":"8.0.1","meeting":"SA#39","upload_date":"2008-03-25","comment":"Correction of title, keywords...","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-801.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-8","version":"8.0.0","meeting":"SA#39","upload_date":"2008-03-25","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-800.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-8","version":"2.0.0","meeting":"SA#39","upload_date":"2008-03-20","comment":"SP-080102","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-200.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"1.5.2","meeting":"-","upload_date":"2008-03-20","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-152.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"1.5.1","meeting":"-","upload_date":"2008-02-04","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-151.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"1.5.0","meeting":"-","upload_date":"2008-01-31","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-150.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"1.4.1","meeting":"SA#38","upload_date":"2007-12-11","comment":"SP-070826","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-141.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"1.3.0","meeting":"-","upload_date":"2007-10-23","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-130.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"1.2.1","meeting":"-","upload_date":"2007-09-24","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-121.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"1.2.0","meeting":"-","upload_date":"2007-09-24","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-120.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"1.1.0","meeting":"-","upload_date":"2007-08-13","comment":"email circulation","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-110.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"1.0.0","meeting":"SA#36","upload_date":"2007-06-13","comment":"SP-070421","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-100.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"0.5.6","meeting":"SA#36","upload_date":"2007-06-13","comment":"SP-070421","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-056.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"0.5.5","meeting":"-","upload_date":"2007-05-14","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-055.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"0.4.0","meeting":"-","upload_date":"2007-04-04","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.892/23892-040.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"1.4.0","meeting":"-","upload_date":null,"comment":"","official_file_url":null,"source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"0.5.4","meeting":"-","upload_date":null,"comment":"","official_file_url":null,"source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"0.5.3","meeting":"-","upload_date":null,"comment":"","official_file_url":null,"source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"0.5.2","meeting":"-","upload_date":null,"comment":"","official_file_url":null,"source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"0.5.1","meeting":"-","upload_date":null,"comment":"","official_file_url":null,"source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"0.5.0","meeting":"-","upload_date":null,"comment":"email circulation","official_file_url":null,"source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"0.3.1","meeting":"-","upload_date":null,"comment":"","official_file_url":null,"source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"0.3.0","meeting":"-","upload_date":null,"comment":"","official_file_url":null,"source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"0.2.0","meeting":"-","upload_date":null,"comment":"","official_file_url":null,"source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"0.1.0","meeting":"-","upload_date":null,"comment":"","official_file_url":null,"source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-8","version":"0.0.1","meeting":"-","upload_date":null,"comment":"","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":"2007-04-04","latest_version_date":"2008-03-25","first_version":"0.0.1","latest_version":"8.0.1","version_count":26}],"classifications":[],"work_items":[{"uid":380034,"acronym":"FS_ICS","effective_acronym":"FS_ICS","title":"Study on centralized IMS service control","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=971","association_sources":[],"association_status":"historical_unverified"},{"uid":370087,"acronym":"FS_ICS-S1","effective_acronym":"FS_ICS-S1","title":"Study on centralized IMS services requirements","responsible_groups":["S1"],"release":"Rel-8","status":"TSG 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=971","association_sources":[],"association_status":"historical_unverified"},{"uid":330012,"acronym":"FS_IMS_CSC","effective_acronym":"FS_IMS_CSC","title":"Study on centralized IMS services control","responsible_groups":["S2"],"release":"Rel-8","status":"Awaiting approval","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=971","association_sources":[],"association_status":"historical_unverified"}],"change_requests":[],"relationships":[],"relationship_release_evidence_summary":[],"relationship_release_evidence":[],"relationship_release_evidence_meta":{"total":0,"returned_count":0,"limit":100,"truncated":false,"href":"/api/specs/23.892/relationship-evidence"}}