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TIA-895

2002 Edition, March 2002

Complete Document

CDMA Tandem Free Operation

Includes all amendments and changes through Reaffirmation Notice , October 2012


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Description / Abstract:

Introduction

This service description document details the Inband Signaling Protocol between Transcoder/Rate Adapter Units (TRAU) for speech traffic channels for the Tandem Free Operation (TFO) of Speech Codecs, sometimes also termed "Vocoder Bypass". It is applied to the North American standard TIA/EIA/IS-2000-A.

Annex A is mandatory and defines the capability and requirements used in the development of this TFO standard.

Annex B is mandatory and describes the general Inband Signaling (IS) Principle, which is applicable to TFO specifications for all systems (e.g., TIA/EIA-136, TIA/EIA/IS-2000-A, GSM) and only updated to include the System Identifications for TIA/EIA-136 and TIA/EIA/IS-2000-A.

Annex C is informative and gives the rules for In Path Equipment (IPE). It is identical for all systems (e.g., TIA/EIA-136, TIA/EIA/IS-2000-A, GSM).