Pick up phone call with voice

I am disabled (quadriplegic) and therefore cannot press the answer and hang up buttons on my smartphone to answer a phone call. On my Samsung S6 EDGE phone (Android 7), there is a function in the settings to pick up the phone by saying "answer". The problem is that since Android 8, this function no longer exists. As I would like to change my telephone, I would not like to find myself unprepared. That's why I would like to know if it would be possible that I could make from an application or a script a system that allows me to press the pick up a button and hang up the phone when I say "pick up" or "hang up".