{"release":"Rel-13","nodes":[{"number":"26.879","type":"TR","title":"Mission Critical Push To Talk (MCPTT); Media, codecs and Multimedia Broadcast/Multicast Service (MBMS) enhancements for MCPTT over LTE","series":26,"status":"Withdrawn under change control","initial_release":"Rel-13","primary_group":"S4","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=2913"}],"edges":[]}