I remember, more than ten years ago, when the director of the company announced that he was going to go fishing in the wild, that I insisted that he bring a satellite phone.
There is no mobile network there and that phone was very useful to him when he sprained his leg by stepping on a slippery stone in the stream where he started.
It was worth it that he had a way to call for help, because he would have struggled a lot with the injured leg.
When he went fishing in New Zealand, there were no such problems, there is an ordinary mobile phone available in every part of the country.