How can I stop calls from overriding apps, or better blocking app?

[AC Question]

stop calls from overriding apps, or better blocking app?

My phone is my only "computer" right now, and I'm being harassed by an ex. Yes I am aware restraining orders exist, but until I get to that point...
Is there any way to keep phone calls from taking over my entire screen and making my phone temporarily useless to me? Even better if you can do it for specific number(s). Yeah, its only a couple seconds, but I can't sit through an entire YouTube video or even type this without multiple interruptions that are starting to make me lose it. Just like he wants.
My first choice would be making phone calls less intrusive, as long as other numbers' calls still show up in my notifications.
Blocking apps seem underwhelming, though I am open to suggestions to others I haven't tried. Is there any way to block voice mails (usually they'll auto answer and hang up) where the call will just show up in my notifications, or less?
Cheap zte zinger phone, lollipop. Prepaid service with no blocking option through provider.
Sorry so long, thanks!

 

[Golfdriver97]

Re: stop calls from overriding apps, or better blocking app?

Welcome to the forums. If you have a wifi connection, you should be able to do this: put the phone into Airplane mode. This kills all power to any radio. After that, you should be able to click on your wifi, and use that to surf the net, but the phone radios will still be deactivated. You won't get any notifications until you take the phone out of airplane mode.