{"id":6396,"number":"26.075","type":"TS","title":"Performance characterization of the Adaptive Multi-Rate (AMR) speech codec","series":26,"status":"Withdrawn before change control","initial_release":"Release 1999","primary_group":null,"secondary_groups":[],"portal_id":1389,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1389","dynareport_url":"https://www.3gpp.org/dynareport/26075.htm","publication_scope":null,"radio_technologies":[],"first_seen_at":"2026-09-16T11:04:53.350359+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=1389","bibliography_source":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv"},"detail_synced_at":"2026-10-08T00:10:56.889584+00:00","versions":[{"release":"Release 1999","version":"1.2.0","meeting":"-","upload_date":"2000-06-23","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.075/26075-120.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Release 1999","version":"1.0.0","meeting":"SA-#6","upload_date":"1999-12-17","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.075/26075-100.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Release 1999","version":"1.0.0","meeting":"SA-#5","upload_date":"1999-10-13","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.075/26075-100.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Release 1999","version":"1.0.0","meeting":"SA-#4","upload_date":"1999-06-23","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.075/26075-100.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Release 1999","version":"0.0.0","meeting":"SA-#3","upload_date":"1999-04-23","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.075/26075-000.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null}],"release_presence":[{"release":"Release 1999","first_version_date":"1999-04-23","latest_version_date":"2000-06-23","first_version":"0.0.0","latest_version":"1.2.0","version_count":5}],"classifications":[],"work_items":[],"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/26.075/relationship-evidence"}}