Voice Key Keyword
MIP bit 20 modifier, the bit that enables the VOX input from the PIO12. Reset if N = 0, otherwise set. All MIP modifiers are both parameters and switches. If N is missing the bit is set and the mode is active. Terse abbreviation is the code's name for the input. The method of input is now restricted to the PIO12 inputs, see Input.
The VOX input was designed as an alternative Positive Response coming from a VOX taking it's input from a microphone for naming tasks.