this post was submitted on 18 Sep 2024
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It's because they are simpler devices which are much less infrastructure dependent, and also less power hungry. A single battery charge in a pager will last you much longer than a single battery charge on a smartphone.
Also due to their lower infrastructure requirements they can function even if cellular networks are not functioning, at all or optimally.
When I worked for a cell company, our on-call technicians carried a pager that was on a different company's network.
What networks do they use then?