> I see phone calls as intrusive because the person calling you has no idea what you're doing and yet they're interrupting you.

Not my fault you enable and allow this interruption. When I don't want to receive calls, I put my phone on total silence and ignore what's happening around me, until I feel I can be interrupted. Of course, there are situations where this isn't possible, but then I feel a text message is as disturbing as a phone call.

> but I feel like you're only talking about calls with people that are close friends, which is a tiny minority of calls I get.

I think maybe we use "silence mode" differently on our phones. When I'm sitting and programming I turn off all notifications and generally "close myself in" in some way, so interruption isn't possible, instead of asking others to not disturb me I make it not possible in the first place. I still receive calls from others who aren't close friends, but I don't notice those until I'm ready to be a part of the AFK world again, and if it's important they'll call again.