I'm always glad when someone calls and I always call people instead of typing down thoughts. Even better than calling is meeting someone IRL, but of course that's not always feasible. Then I usually begin by telling him or her how grateful I am that somebody is choosing the direct way over some form of texting and there are, sadly, far too many. Like your dad, I wouldn't buy anything not specially designed for transmitting voice in an analogue fashion. Too few options there, recently... Most of the people I communicate with are aware of this, thank goodness, but it's always hard to tell new acquaintances that I don't use Viber, Whatsapp, Facebook and even reluctant to use SMS.
I enjoy meeting people IRL but cannot stand the phone.
Don't you find it inconvenient to be interrupted by the phone?
Sometimes I'm in a bad mood or deep in thought and it's just not a good time for me to get into communication mode.
Then there is always the awkwardness of ending the call.
Talking on the phone effectively sucks a lot of my energy and causes anxiety afterwards. It's a non trivial event.
I'd much rather see the person in person where we can communicate properly and with full attention and the time to properly do so.
But some people seem to be able to effortlessly answer the phone and switch their train of thought to deal with whoever it is without skipping a beat. I envy that ability.