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ITU Q.52:2001

ITU Q.52:2001 Signalling Between International Switching Centres And Stand-alone Echo Control Devices Describes a signalling interface between an International Switching Centre (ISC) and an external, stand-alone Echo Control Device (ECD). This signalling interface provides for the call by call control

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Table of Contents

1Scope
2References
3Definitions
4Abbreviations
5Requirements/Principles
6ConceptualModel
7NetworkArchitecture
7.1E1-Network
7.2T1-Network
8InternationalSwitchingCentre
9ExternalEchoControlDevice
10ECDcontrolchannel
10.1E1-Network
10.1.1Requirementsforthecontrolchannelequipment
10.1.2Coding
10.2T1-Network

Abstract

Describes a signalling interface between an International Switching Centre (ISC) and an external, stand-alone Echo Control Device (ECD). This signalling interface provides for the call by call control of an ECD in real time to ensure an appropriate speech/signal enhancement capability.

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