ETSI ES 201 158 PDF

Published Date: 04/01/2002

Telecommunications security; Lawful Interception (LI); Requirements for network functions

Published Date: 05/01/1998

Telecommunications security; Lawful Interception (LI); Requirements for network functions

Published Date: 11/01/1999

Integrated Services Digital Network (ISDN); Conference call, add-on (CONF) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the n

Published Date: 11/01/2000

Digital cellular telecommunications system (Phase 2+) (GSM); Half rate speech; Test sequences for the GSM half rate speech codec (GSM 06.07 version 8.0.1 Release 1999)

Published Date: 07/01/2020

Universal Mobile Telecommunications System (UMTS); LTE; Proximity-based services (ProSe); Stage 2 (3GPP TS 23.303 version 16.0.0 Release 16)

Published Date: 01/01/1996