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ITU There are 5320 products.
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ITU-T I.511
ITU-T I.511 ISDN-to-ISDN layer 1 internetwork interface
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ITU-T I.601
ITU-T I.601 General maintenance principles of ISDN subscriber access and subscriber installation
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ITU-T P.16
ITU-T P.16 Subjective effects of direct crosstalk; tresholds of audibility and intelligibility
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ITU-T P.32
ITU-T P.32 Evaluation of the efficiency of telephone booths and acoustic hoods
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ITU-T P.48
ITU-T P.48 Specification for an intermediate reference system
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ITU-T P.55
ITU-T P.55 Apparatus for the measurement of impulsive noise
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ITU-T P.54
ITU-T P.54 Sound level meters (apparatus for the objective measurement of room noise)
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ITU-T P.61
ITU-T P.61 Methods for the calibration of condenser microphones
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ITU-T P.76
ITU-T P.76 Determination of loudness ratings; fundamental principles
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ITU-T P.75
ITU-T P.75 Standard conditioning method for handsets with carbon microphones
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ITU-T Q.120-Q.139
ITU-T Q.120-Q.139 Specifications of signalling system No. 4
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ITU-T Q.251-Q.300
ITU-T Q.251-Q.300 Specifications of Signalling System No. 6
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