{"release":null,"nodes":[{"number":"23.881","type":"TR","title":"Interworking aspects and migration scenarios for IPv4-based IP Multimedia Subsystem (IMS) implementations","series":23,"status":"Withdrawn before change control","initial_release":"Rel-6","primary_group":"S2","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=961"}],"edges":[]}