I love Skyping my bestie in SA and we can happily chat for an hour.
But I also can't quite work out these days what the protocol is for phoning - my son never answers his landline, so I text him "Can I call?" Then he replies "K" and a smiley face. Then I call the landline and he doesn't pick up. So I am cursing by the time we've worked out what is actually best. He calls me too of course but I always answer the damn phone. Daughter is easy she calls me any time she likes and me her, and if the other person answers then good and well, otherwise we leave a message.
I was thinking the other day, I long for the days when people (usually good friends or family) would just "drop in" at my house over a weekend. Nowadays everything is by appointment.