Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; IP Multimedia (IM) Subsystem Cx and Dx Interfaces; Signalling flows and message contents (3GPP TS 29.228 version 19.1.0 Release 19)
STANDARD published on 28.1.2026
Designation standards: ETSI TS 129228-V19.1.0
Publication date standards: 28.1.2026
The number of pages: 92
Approximate weight : 307 g (0.68 lbs)
Country: European technical standard
Category: Technical standards ETSI