If I'm required to be on call (and I don't mind being on call; I write the software so I should answer questions when it fails), I require a work phone. I never

If I'm required to be on call (and I don't mind being on call; I write the software so I should answer questions when it fails), I require a work phone. I never, ever, put work comm on my personal phone (or laptop, etc). Period. What company that can afford me cannot afford a phone for me?