This is specifically about phone coverage, not data. My daughter is driving from Austin, TX to Sacramento, CA. All the way through Texas (I-40), calls would last less than 10 minutes, then I’d have trouble hearing her, or she hearing me, and I would hang up and call her back and the voice quality excellent--for under 10 minutes. Etc. Next day we played this game from Amarillo to the New Mexico border, whereupon I was able to talk to her for an hour straight. It was all good through New Mexico and I think most of Arizona, but once she reached Bakersfield, from Bakersfield to almost Fresno on US 99, it was like the Texas experience. And since just before Fresno, it’s been fine (so far).
I can understand if cell towers are far apart and the call drops and later there is a signal. But here in the 21st century, shouldn’t it be possible to switch from one to the next? Or is that just beyond the scope of technology? But surely there were switches in New Mexico, and Central California, and they are seamless. But very “seamy” in Texas, have to be done manually. Any ideas?