TIA-895-B:2011

$52.00

CDMA Tandem Free Operation

Published By	Publication Date	Number of Pages
TIA	2011	106

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Category: TIA

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Description

This service description document details the Inband Signaling
(IS) protocol between Transcoder/Rate Adapter Units (TRAUs) for
speech traffic channels for the Tandem Free Operation (TFO) of
speech codecs, sometimes also termed "Vocoder Bypass". It is
applied to the cdma2000^®1 standards.

Annex A 4 standards. is mandatory and defines the capability and
requirements used in the development of this TFO 6 standard.

Annex B is mandatory and describes the general IS protocol,
which is applicable to TFO specifications for all systems (e.g.,
TDMA, cdma2000, GSM and UMTS)

Annex C is informative and gives the rules for In Path Equipment
(IPE). It is identical for all systems (e.g., TDMA, cdma2000, GSM
and UMTS).

¹ cdma2000^® is the trademark for the
technical nomenclature for certain specifications and standards of
the Organizational Partners (OPs) of 3GPP2. Geographically (and as
of the date of publication), cdma2000^® is a registered
trademark of the Telecommunications Industry Association (TIA-USA)
in the United States.