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ITU There are 5339 products.
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ITU-T E.401
ITU-T E.401 Statistics for the international telephone service (number of circuits in operation and volume of traffic)
$25.00In Stock -
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ITU-T E.420
ITU-T E.420 Checking the quality of the international telephone service - General considerations
$25.00In Stock -
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ITU-T E.427
ITU-T E.427 Collection and statistical analysis of special quality of service observation data for measurements of customer difficulties in the international automatic service
$25.00In Stock -
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ITU-T E.520
ITU-T E.520 Number of circuits to be provided in automatic and/or semiautomatic operation, without overflow facilities
$25.00In Stock -
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ITU-T E.521
ITU-T E.521 Calculation of the number of circuits in a group carrying overflow traffic
$25.00In Stock -
