Ah, OK, thanks. That’s what I’m missing. On Phonak the mics are used to pick up your own voice so that’s why it’s not possible to mute the mics. I think that’s a drawback of using the HAs’ mics instead of the phone’s mic.
But is there an option to choose to use the phone’s mic instead of using the HAs’ mics? If so, then at least there’s a choice there to compromise and use the phone mic so you can mute the HAs’ mics.