Nowadays most land lines (BT anyways) will accept SMS text messages and will dictate them to the receiver.
I always take my phone but turn it off. I check in with the missus by text once a day so she knows I'm still alive and cant cash in the insurance yet.
Voice uses high bandwidth and a lot of power, text uses significantly less bandwith and power. Sometimes, even if I have no reception, a text will squirt through where a voice call was impossible.
Also, if you are lost it is possible fof rescue services to triangulate you position to within a pretty good radius provided you are covered by sufficient receivers.
I always take my phone but turn it off. I check in with the missus by text once a day so she knows I'm still alive and cant cash in the insurance yet.
Voice uses high bandwidth and a lot of power, text uses significantly less bandwith and power. Sometimes, even if I have no reception, a text will squirt through where a voice call was impossible.
Also, if you are lost it is possible fof rescue services to triangulate you position to within a pretty good radius provided you are covered by sufficient receivers.