Read this great article over at TechDirt by Mike Masnick.  “Phone Calls Are So Last Century”.

Was right up my ally.  I don’t like to talk on the phone.  It interrupts me and my train of thought when I’m working.

A snippet from the article that applies.

… And it was at that point that I realized how rare it is that I'll accept or make unexpected or unplanned phone calls, with the exception of my wife and my parents (and potentially some work-related "emergency.") There are a few very close, long-term friends that I'll call every so often, but I really haven't done that in a while, and I feel a bit awkward about doing it these days. I still talk on the phone for meetings, but always at set times.

Apparently, I'm not the only person who feels this way.

Also NY Times has an article on it as well.

So when I don’t answer your call, it’s not personal. Txt me if you want to get anywhere.