Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Service requirements for the Internet Protocol (IP) multimedia core network subsystem (IMS); Stage 1 (3GPP TS 22.228 version 12.9.0 Release 12)
STANDARD published on 12.1.2015
Designation standards: ETSI TS 122228-V12.9.0
Publication date standards: 12.1.2015
The number of pages: 50
Approximate weight : 150 g (0.33 lbs)
Country: European technical standard
Category: Technical standards ETSI