ETSI TS 123 228 PDF

Published Date: 01/01/2021

Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 16.6.0 Release 16)

Published Date: 10/01/2020

Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 16.5.0 Release 16)

Published Date: 04/01/2019

Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 15.4.0 Release 15)

Published Date: 01/01/2018

Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 14.6.0 Release 14)

Published Date: 10/01/2017

Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 14.5.0 Release 14)

Published Date: 07/01/2017

Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 14.4.0 Release 14)

Published Date: 05/01/2017

Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 14.3.0 Release 14)

Published Date: 07/01/2015

Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 11.11.0 Release 11)

Published Date: 07/01/2015

Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 10.9.0 Release 10)

Published Date: 10/01/2010

Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 9.4.0 Release 9)

Published Date: 03/01/2010

Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 8.12.0 Release 8)

Published Date: 01/01/2010

Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 7.16.0 Release 7)

Published Date: 03/01/2007

Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 6.16.0 Release 6)

Published Date: 06/01/2006

Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 version 5.15.0 Release 5)

Published Date: 11/01/1997

Universal Personal Telecommunication (UPT); UPT phase 2; Subscriptions, service profiles and information model

Published Date: 08/01/2020

Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec test sequences (3GPP TS 26.174 version 16.0.0 Release 16)

Published Date: 08/01/2020

Universal Mobile Telecommunications System (UMTS); Service requirements for the User Data Convergence (UDC) (3GPP TR 22.985 version 16.0.0 Release 16)

Published Date: 01/01/1997

A guide to year 2000 compliance

Published Date: 08/19/2010

Dangerous Goods - Initial Emergency Response Guide

Published Date: 10/17/1994

TECHNICAL DRAWING for students

Published Date: 09/05/1998

Guidelines for third-party certification and accreditation Guide 43 - Proficiency testing by interlaboratory comparisons, Part 1: Development and operation of proficiency testing schemes

Published Date: 09/05/1998

Guidelines for third-party certification and accreditation - Guide 43 - Proficiency testing by interlaboratory comparisons, Part 2: Selection and use of proficiency testing schemes by laboratory accreditation bodies

Published Date: 01/01/1993

Guideline for third-party certification and accreditation, Part 58: Calibration and testing laboratory accreditation systems - General requirements for operation and recognition