ETSI ETR 344 PDF

Published Date: 05/01/2000

Specification of Dual Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 4: Receivers for use in Terminal Equipment for end-to-end signalling

Published Date: 08/01/2020

Digital cellular telecommunications system (Phase 2+) (GSM); (UMTS); LTE; Liberty Alliance and 3GPP security interworking; Interworking of Liberty Alliance (ID-FF), Identity Web Services Framework (ID-WSF) and Generic Authentication Architecture (GAA) (3GPP TR 33.980 version 16.0.0 Release 16)

Published Date: 07/01/2018

Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Mandatory speech codec speech processing functions Adaptive Multi-Rate (AMR) speech codec; Source controlled rate operation (3GPP TS 26.093 version 15.0.0 Release 15)

Published Date: 01/01/2021

LTE; Universal Mobile Telecommunications System (UMTS); Mobility Management Entity (MME) and Serving GPRS Support Node (SGSN) interfaces for interworking with packet data networks and applications (3GPP TS 29.128 version 16.2.0 Release 16)

Published Date: 01/01/1996

Published Date: 01/01/1991