I just switched to ST from ATT. When I drove to the border of Mexico in AZ (HWY 85), I used to have coverage under ATT in the towns of AJO (Zip 85321), and even at the border at Lukeville (zip code 85341), before crossing into Mexico.
I now have a Nokia e71, which supposedly runs on the ATT network. On a recent trip, I had no coverage on my drive to the Mexico border after I left Gila Bend (zip code 85337). What's the story?
Thanks!