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ETSI - ETS 300 439

Business Telecommunications (BTC); Transmission Characteristics of Digital Private Branch EXchanges (PBXs)

active, Most Current
Organization: ETSI
Publication Date: 1 December 1996
Status: active
Page Count: 106

Document History

ETS 300 439
December 1, 1996
Business Telecommunications (BTC); Transmission Characteristics of Digital Private Branch EXchanges (PBXs)
A description is not available for this item.
PRETS 300 439
January 1, 1996
Business Telecommunications (BTC); Transmission Characteristics of Digital; Private Branch eXchanges (PBXs)
This European Telecommunication Standard (ETS) specifies the transmission requirements for digital Private Branch eXchanges (PBXs) (through-connecting telecommunications equipment) that: - are not...
PRETS 300 439
January 1, 1995
Business Telecommunications (BTC); Transmission Characteristics of Digital Private Branch Exchanges (PBXs)
This European Telecommunication Standard (ETS) specifies the transmission requirements for digital Private Branch eXchanges (PBXs) (through-connecting telecommunications equipment) that: - are not...

References

This document references:
IEC 60050-651 - International Electrotechnical Vocabulary – Part 651: Live working
Published by IEC on April 1, 2014
This part of IEC 60050 defines terms specifically relevant to live working. It has the status of a horizontal standard in accordance with IEC Guide 108, Guidelines for ensuring the coherency of IEC...
This document references:
ISO 3 - Preferred Numbers - Series of Preferred Numbers
Published by ISO on January 1, 1973
SCOPE AND FIELD OF APPLICATION This International Standard specifies series of preferred numbers.
This document references:
ISO 9614-1 - Acoustics - Determination of Sound Power Levels of Noise Sources Using Sound Intensity - Part 1: Measurement at Discrete Points
Published by ISO on June 1, 1993
This part of IS0 9614 specifies a method for measuring the component of sound intensity normal to a measurement surface which is chosen so as to enclose the noise source(s) of which the sound power...
This document is referenced by:
TIA-464 - Telecommunications Multiline Terminal Systems Requirements for PBX Switching Equipment, Addendum 1
Published by TIA on June 1, 2004
The requirements in this addendum are intended to align the requirements in ANSI/TIA-464-C standard for Private Branch Exchange (PBX) systems with the new changes in ANSI/TIA-968-A and...
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