Today we think nothing of calling overseas. In many cases, using tools like Skype, not only is it easy, it’s free and can easily include video.
In the early 1960’s it was another story. My parents made one phone call to Holland. It lasted 3 minutes, took something like an hour or more to set up, involved at least three separate operators, and cost an arm and a leg.
I believe it was in part to set up a visit.