hpnicfVoCallActiveVoiceTxDuration 1.3.6.1.4.1.11.2.14.11.15.2.39.15.1.1.1.3

Duration of voice transmitted from this peer to voice gateway for this call. The voice utilization rate can be obtained by dividing this by hpnicfVoCallActiveTXDuration object. The units is milliseconds.