2/ I use a CPAP for sleep apnea. My doc gave me a prescription to change machine settings and get a new mask.
3/ A service provider place used to have send a tech to change the settings. Which was annoying (as is the whole Cpap thing, but that’s not the point)
Now they said, “We can send you ‘wireless modem’ for your Cpap so we can change your settings remotely.” I was like great!