When there is no electricity supply in the villages, this is an innovative way of giving 'power' to the people!
A few years ago, I read about a tangentially-related (mobile phones without in-home electricity) situation with Mennonites using cell phones. (Apologies for any factual errors in my recollection below -- it was an article I vaguely remember from reading an in-flight magazine maybe six years ago.)
Like the Amish, the Mennonites are nominally supposed to live simple lives free of modern trappings. However, some Mennonite farmers have devised a rationalization for using cell phones. In particular, they can be really handy to be able to communicate short messages across the fields, without having to trek on foot or by horse. (They had some religious argument, where they didn't really own the phones -- but were just "borrowing" them from outsiders, or some such other way of resolving the cognitive dissonance.) In this article I read, they explained that, while the farmers didn't have electricity in their own homes, they would regularly travel to nearby "modern" shops to sell their produce or buy supplies. While there, they would leave their phones with the shopkeepers to charge up. In theory, the shopkeepers could have charged them a small fee for this service, but usually would just offer it up as a nice way to help their loyal customers.
So, that said, there are ways to charge cell phones without fully electrifying a village. If there's a single, shared charging point (either in a shop or in some public building), it should be enough. Furthermore, it's a lot easier to install a single mobile phone charging station than it is to run power lines and/or land line phone service to the entire village. Strictly speaking, the charging point doesn't even have to be in the village, as long as someone can be trusted to take everyone's free phones to the nearest charging spot (which could be a few hours away) ~once/week.