标准号:TS 124 503-2015
中文标准名称:TS 124 503-2015
英文标准名称:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; TISPAN; IP Multimedia Call Control Protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP) Stage 3 [3GPP TS 2
发布日期:2015-04-01
实施日期:2015-07-27