{"id":6441,"number":"26.226","type":"TS","title":"Cellular text telephone modem; General description","series":26,"status":"Under change control","initial_release":"Rel-4","primary_group":"S4","secondary_groups":[],"portal_id":1432,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1432","dynareport_url":"https://www.3gpp.org/dynareport/26226.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=1432","bibliography_source":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv"},"detail_synced_at":"2026-10-08T00:18:36.683587+00:00","versions":[{"release":"Rel-19","version":"19.0.0","meeting":"SA#109","upload_date":"2025-10-21","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-j00.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-18","version":"18.0.0","meeting":"SA#103","upload_date":"2024-04-26","comment":"Automatic upgrade from previo...","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-i00.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-17","version":"17.0.0","meeting":"SA#95-e","upload_date":"2022-04-07","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-h00.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-16","version":"16.0.0","meeting":"SA#88-e","upload_date":"2020-07-21","comment":"","official_file_url":"https://www.3gpp.org/ftp//Specs/archive/26_series/26.226/26226-g00.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-15","version":"15.0.0","meeting":"SA#80","upload_date":"2018-06-25","comment":"","official_file_url":"https://www.3gpp.org/ftp//Specs/archive/26_series/26.226/26226-f00.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-14","version":"14.0.0","meeting":"SA#75","upload_date":"2017-03-17","comment":"","official_file_url":"https://www.3gpp.org/ftp//Specs/archive/26_series/26.226/26226-e00.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-13","version":"13.0.0","meeting":"SA#70","upload_date":"2015-12-18","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-d00.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-12","version":"12.0.0","meeting":"SA#65","upload_date":"2014-09-26","comment":"Automatic upgrade from previo...","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-c00.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-11","version":"11.0.0","meeting":"SA#57","upload_date":"2012-09-21","comment":"Automatic upgrade from previo...","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-b00.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-10","version":"10.0.0","meeting":"SA#51","upload_date":"2011-04-05","comment":"Automatic upgrade from previo...","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-a00.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-9","version":"9.0.0","meeting":"SA#46","upload_date":"2009-12-18","comment":"Automatic upgrade from previo...","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-900.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#37","upload_date":"2007-09-27","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-800.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":28264,"version_status":null},{"release":"Rel-7","version":"7.0.0","meeting":"SA#36","upload_date":"2007-06-21","comment":"Upgraded unchanged from Rel-6","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-700.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-6","version":"6.0.0","meeting":"SA#26","upload_date":"2005-01-06","comment":"Upgrade on Rel-6 freeze","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-600.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-5","version":"5.0.0","meeting":"SA-#11","upload_date":"2001-04-10","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-500.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-4","version":"4.0.0","meeting":"SA-#10","upload_date":"2000-12-21","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-400.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-4","version":"0.0.10","meeting":"-","upload_date":"2000-10-24","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-00a.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-4","version":"0.0.9","meeting":"SA-#9","upload_date":"2000-10-18","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-009.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-4","version":"0.0.0","meeting":"SA-#8","upload_date":"2000-06-23","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-000.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"}],"release_presence":[{"release":"Rel-4","first_version_date":"2000-06-23","latest_version_date":"2000-12-21","first_version":"0.0.0","latest_version":"4.0.0","version_count":4},{"release":"Rel-5","first_version_date":"2001-04-10","latest_version_date":"2001-04-10","first_version":"5.0.0","latest_version":"5.0.0","version_count":1},{"release":"Rel-6","first_version_date":"2005-01-06","latest_version_date":"2005-01-06","first_version":"6.0.0","latest_version":"6.0.0","version_count":1},{"release":"Rel-7","first_version_date":"2007-06-21","latest_version_date":"2007-06-21","first_version":"7.0.0","latest_version":"7.0.0","version_count":1},{"release":"Rel-8","first_version_date":"2007-09-27","latest_version_date":"2007-09-27","first_version":"8.0.0","latest_version":"8.0.0","version_count":1},{"release":"Rel-9","first_version_date":"2009-12-18","latest_version_date":"2009-12-18","first_version":"9.0.0","latest_version":"9.0.0","version_count":1},{"release":"Rel-10","first_version_date":"2011-04-05","latest_version_date":"2011-04-05","first_version":"10.0.0","latest_version":"10.0.0","version_count":1},{"release":"Rel-11","first_version_date":"2012-09-21","latest_version_date":"2012-09-21","first_version":"11.0.0","latest_version":"11.0.0","version_count":1},{"release":"Rel-12","first_version_date":"2014-09-26","latest_version_date":"2014-09-26","first_version":"12.0.0","latest_version":"12.0.0","version_count":1},{"release":"Rel-13","first_version_date":"2015-12-18","latest_version_date":"2015-12-18","first_version":"13.0.0","latest_version":"13.0.0","version_count":1},{"release":"Rel-14","first_version_date":"2017-03-17","latest_version_date":"2017-03-17","first_version":"14.0.0","latest_version":"14.0.0","version_count":1},{"release":"Rel-15","first_version_date":"2018-06-25","latest_version_date":"2018-06-25","first_version":"15.0.0","latest_version":"15.0.0","version_count":1},{"release":"Rel-16","first_version_date":"2020-07-21","latest_version_date":"2020-07-21","first_version":"16.0.0","latest_version":"16.0.0","version_count":1},{"release":"Rel-17","first_version_date":"2022-04-07","latest_version_date":"2022-04-07","first_version":"17.0.0","latest_version":"17.0.0","version_count":1},{"release":"Rel-18","first_version_date":"2024-04-26","latest_version_date":"2024-04-26","first_version":"18.0.0","latest_version":"18.0.0","version_count":1},{"release":"Rel-19","first_version_date":"2025-10-21","latest_version_date":"2025-10-21","first_version":"19.0.0","latest_version":"19.0.0","version_count":1}],"classifications":[],"work_items":[{"uid":2238,"acronym":"","effective_acronym":"WI Level:","title":"General description and C-code","responsible_groups":["S4"],"release":"Rel-4","status":"Awaiting approval","wi_level":"Work Task (3rd Level)","type":"Work Item","first_release":null,"last_release":null,"provenance_type":"official","source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1432","association_sources":[],"association_status":"historical_unverified"},{"uid":1517,"acronym":"GTT","effective_acronym":"GTT","title":"Global Text Telephony","responsible_groups":["S1"],"release":"Rel-4","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=1432","association_sources":[],"association_status":"historical_unverified"},{"uid":320001,"acronym":"TEI8","effective_acronym":"TEI8","title":"(Small) Technical Enhancements and Improvements for Rel-8","responsible_groups":["RP"],"release":"Rel-8","status":"Awaiting approval","wi_level":"Feature (1st level)","type":"Work Item","first_release":"Rel-8","last_release":"Rel-8","provenance_type":"parsed","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20261012.zip","association_sources":["crdb"],"association_status":"source_tracked"}],"change_requests":[{"portal_cr_id":null,"cr_number":"0001","revision":null,"category":"F","impacted_version":"..","target_release":"Rel-8","title":"Requirement to send traditional text telephone signaling in case of native text conversion and CTM negotiation failure","wg_tdoc":"S4-070536","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":"F","impacted_version":"7.0.0","target_release":"Rel-8","title":"Requirement to send traditional text telephone signaling in case of native text conversion and CTM negotiation failure","wg_tdoc":"S4-070621","wg_status":"agreed","tsg_tdoc":"SP-070634","tsg_status":"approved","new_version":"8.0.0","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/26.226/relationship-evidence"}}