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ATIS 0300221.1995(S2015)
- OAM&P - In-Service, Nonintrusive Measurement Device (NMD) Voice Service Measurements (formerly T1.221-1995 (R2004) )
- standard by Alliance for Telecommunication Industry Solutions, 06/01/2004
- Publisher: ATIS
$138.00$275.00
This standard provides specifications for in-service nonintrusive measurement devices (INMD) used to measure various parameters of importance to voice service transmission maintenance of telecommunications networks. These measurement devices are used primarily for the measurement of voicegrade analog parameters such as speech level, noise level, echo path loss and echo path delay. This standard specifies interface, measurement range and accuracy requirements for measuring voicegrade transmission parameters as well as descriptions of optional functions associated with these parameters. Descriptions of measurement algorithms that have been verified to meet the accuracy requirements of this standard for the measurement of speech level, noise and echo path delay are included in an annex.
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