Back when we had bag phones, I barely used mine. I did not even turn it on much because I didn't have roaming on mine and I think maybe 30 minutes of free minutes.
I stopped in my regular truckstop for fuel, and thee was a note that the boss, wass in the hospital getting open heart surgery, and for me to just try to keep everything rolling.
I had to take care of business off the phone, my bill that month was 1400 some odd bucks. lol