I was just e-mailing back and forth with one of my best friends, and was about to send yet another e-mail to clarify something, and then I was like: "What the hell am I doing? Why don't I call her on the phone?" And so I did. And we had...a conversation. And it was great! It relieved the loneliness of working at home much better than typing. I think people should e-mail and text less, and talk on the phone more. Especially when it actually saves time (There's this assumption that you cut out some kind of unnecessary chatter by e-mailing/IMing, but I think that's exaggerated).
Talking on the phone is also cool in a romantic, retro way. I even think people should talk on land lines more -- as much as possible. First of all it's less potentially-carcinogenic. Secondly there's not all that trouble with bad reception. And thirdly, it can feel really nice to hold a good old-fashioned receiver. I have a non-cordless phone and love it. It's the wall-mount-option kind, and I even wish it were the big clunky desk model.
Talking on the phone more is also a way to counteract all the overproliferation of "hot" media by chilling out with a nice "cool" medium.