标准号:TS 124 642-2009
中文标准名称:TS 124 642-2009
英文标准名称:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Completion of Communications to Busy Subscriber (CCBS) and Completion of Communications by No Reply (CCNR) using IP Multimedia (IM) Core Network
发布日期:2009-09-01
实施日期:2009-10-09