{"id":5809,"number":"23.806","type":"TR","title":"Voice call continuity between Circuit Switched (CS) and IP Multimedia Subsystem (IMS) Study","series":23,"status":"Under change control","initial_release":"Rel-7","primary_group":"S2","secondary_groups":[],"portal_id":886,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=886","dynareport_url":"https://www.3gpp.org/dynareport/23806.htm","publication_scope":null,"radio_technologies":[],"first_seen_at":"2026-09-16T11:04:50.102693+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=886","bibliography_source":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv"},"detail_synced_at":"2026-10-07T23:24:48.284952+00:00","versions":[{"release":"Rel-7","version":"7.0.0","meeting":"SA#30","upload_date":"2005-12-15","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.806/23806-700.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-7","version":"2.0.0","meeting":"SA#30","upload_date":"2005-12-12","comment":"SP-050675","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.806/23806-200.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-7","version":"1.7.0","meeting":"-","upload_date":"2005-11-15","comment":"S2-053005","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.806/23806-170.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-7","version":"1.6.0","meeting":"-","upload_date":"2005-10-19","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.806/23806-160.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-7","version":"1.5.1","meeting":"-","upload_date":"2005-09-30","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.806/23806-151.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-7","version":"1.4.0","meeting":"-","upload_date":"2005-09-07","comment":"S2-051929","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.806/23806-140.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-7","version":"1.3.0","meeting":"-","upload_date":"2005-08-19","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.806/23806-130.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-7","version":"1.2.0","meeting":"-","upload_date":"2005-07-18","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.806/23806-120.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-7","version":"1.1.0","meeting":"-","upload_date":"2005-07-18","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.806/23806-110.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-7","version":"1.0.0","meeting":"SA#28","upload_date":"2005-06-17","comment":"SP-050347","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.806/23806-100.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-7","version":"0.2.1","meeting":"-","upload_date":"2005-06-17","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.806/23806-021.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-7","version":"0.2.0","meeting":"-","upload_date":"2005-05-23","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/23_series/23.806/23806-020.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-7","version":"1.5.0","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-7","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-7","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-7","first_version_date":"2005-05-23","latest_version_date":"2005-12-15","first_version":"0.0.1","latest_version":"7.0.0","version_count":15}],"classifications":[],"work_items":[{"uid":32104,"acronym":"Effective Acronym:","effective_acronym":"WI Level:","title":"TR for Voice Call Continuity between CS and IMS (incl. I-WLAN)","responsible_groups":["S2"],"release":"Rel-7","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=886","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/23.806/relationship-evidence"}}