As connected as we are in Los Angeles, there are plenty of places in the world without things like cellphone reception. Take, for example, rural parts of Oaxaca, Mexico, where not having cell reception is a reality. 

But some entrepreneurs are trying to change that. They're installing their own cell networks in places that have been ignored by telecom companies. Lizzie Wade recently wrote about this for Wired and she joins A Martinez with more from Mexico City.