I HATE cell phones, but I love my wife, so I carry a phone when I go to the woods.
It is on vibrate, but I don't answer a call unless it is from Joan or my 85 year old mother.
I fight some medical trouble that would keep any sensible guy out of the woods, but being "out there" is the most enjoyable remnant of my former life, and it means a lot to me.
The phone is in my left hand pocket, and reachable of I fall and get injured. I don't INTEND to use it any more than I intend to "use" my safety harness, but it feels wise to have there, just in case!
When I shot a doe just before dark earlier this season, I made a quick call to say I'd be an hour later than usual getting home because there was work to do! It was better than having my bride of 30 years sitting home worrying...