{"id":9050,"number":"29.998-04-3","type":"TR","title":"Open Service Access (OSA) Application Programming Interface (API) Mapping for Open Service Access; Part 4: Call Control Service Mapping; Subpart 3: MEGACO mapping","series":29,"status":"Withdrawn before change control","initial_release":"Rel-5","primary_group":"N5","secondary_groups":[],"portal_id":1770,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1770","dynareport_url":"https://www.3gpp.org/dynareport/29998-04-3.htm","publication_scope":null,"radio_technologies":[],"first_seen_at":"2026-09-16T11:13:24.239494+00:00","updated_at":"2026-10-16T09:35:06.458750+00:00","raw_metadata":{"source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1770"},"detail_synced_at":"2026-10-08T09:50:14.370730+00:00","versions":[],"release_presence":[],"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/29.998-04-3/relationship-evidence"}}