It is something complicated, but although I see many people trapped in social networks. I still see many people who go on the street talking on the phone.

Send a text asking, what happened? I would do it if I don't manage to answer the call, for being busy in another activity, or for not having the phone nearby.

Personally, do not usually answer unknown numbers.

But if the phone rings and I see someone's name, my mind immediately thinks that it means something to me or needs something, the most logical thing is to answer at the moment. Do not let the phone sound and then ask what happens.

I guess whoever opts for the last option is because he simply does not want to attend the call.