ETSI TS 133128-V17.21.0

Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; Security; Protocol and procedures for Lawful Interception (LI); Stage 3 (3GPP TS 33.128 version 17.21.0 Release 17)

STANDARD published on 3.7.2026

English -
PDF - Immediate download (124.50 USD)

English -

Print design (124.50 USD)

The information about the standard:

Designation standards: ETSI TS 133128-V17.21.0
Publication date standards: 3.7.2026
The number of pages: 289
Approximate weight : 898 g (1.98 lbs)
Country: European technical standard
Category: Technical standards ETSI