
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia (IM) Subsystem Cx and Dx Interfaces; Signalling flows and message contents (3GPP TS 29.228 version 8.11.1 Release 8)
STANDARD published on 23.2.2011
Designation standards: ETSI TS 129228-V8.11.1
Publication date standards: 23.2.2011
The number of pages: 71
Approximate weight : 213 g (0.47 lbs)
Country: European technical standard
Category: Technical standards ETSI