Using IC-7300 voicekeyer in N1MM+

I've not seen this described before but found a video on it. And it works well.
You can probabely also use the RTTY and CW keyer like this but if that is useful?



Thanks to PE1RWL.

Basically: to put the CAT command  {CAT1HEX FEFE94E0280001FD} in N1MM, you can play the TX voices in the ICOM IC-7300.