{"release":"Rel-12","nodes":[{"number":"24.183","type":"TS","title":"IP Multimedia Subsystem (IMS) Customized Ringing Signal (CRS); Protocol specification","series":24,"status":"Under change control","initial_release":"Rel-9","primary_group":"C1","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1051"}],"edges":[]}