SimpleVOX* setting question

In the FlexLib API code, I'm not sure what is going on with the SimpleVOXLevel and SimpleVOXDelay code. On most of the settings, there is a check to make sure the min/max levels aren't exceeded (like 0 or 100). But not on those two settings. Also, on SimpleVOXDelay, it is multiplied by 20 when sent to the radio. Could someone explain how that works, or if that was just an oversight? Especially the * 20 multiplier. Thanks! private int _simpleVOXLevel; ///

/// The vox level from 0 to 100 ///

public int SimpleVOXLevel { get { return _simpleVOXLevel; } set { if (_simpleVOXLevel != value) { _simpleVOXLevel = value; SendCommand("transmit set vox_level=" + _simpleVOXLevel); RaisePropertyChanged("SimpleVOXLevel"); } } } private int _simpleVOXDelay; ///

/// Sets the VOX delay from 0 to 100 ///

public int SimpleVOXDelay { get { return _simpleVOXDelay; } set { if (_simpleVOXDelay != value) { _simpleVOXDelay = value; SendCommand("transmit set vox_delay=" + _simpleVOXDelay * 20); RaisePropertyChanged("SimpleVOXDelay"); } } }