My iphone power button is broken, how do I cancel incoming calls?

So my power button is broken and i'm on assistive touch
but the problem with assistive touch is that to get to the power button i have to press the dot then a sub menu then the lock
so to cancel an incoming call i have to press six times and it's kinda annoying,
so is there a shortcut where i can cancel the calls by one or two touches
can i change the function of other buttons to make it cancel the call?

You need to get it repaired, this is a big problem which quite a lot of users are facing on a day-to-day basis.

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