Good news.
Be sure you have “texting” available on your cell .. that way if the cell tower goes down, you can just text people instead.
The reason is simple .. one is voice the other is data. They operate separately.
I wasn’t going to have texting, until my geek son told me about this clever trick. I rarely use texting .. but in an emergency where I might have no voice access, I can still text.
Best advice on this thread. Data gets through when voice is jammed.
All cell services still require a tower. But text messaging is done on a control channel which doesn’t require a voice channel to be vacant so you can get it out if you’ve any connection to any tower across even greater ranges. Whereas you may be too far out to carry on a voice conversation or grab a voice channel the tower will still relay a text.