I am unfortunately tied to the telephone due to my work. It saves me from having to travel as much as I used to. I used to be an out on Monday back late on Thursday or early afternoon on Friday traveler for work and the cell phone saves me from this.
I do talk on the phone while driving but I will only do it when I am not in heavy traffic, while using an earpiece so it's hands free, and in an area that I know very well.

It's not optimal but I do it as safely as I can.