Can I create a MESH network with mobile phones?

Episode 1591 (2:06:16)

Nolan from Glendale, CA
Mesh Network Example

Nolan wants to know if a mesh network can be deployed with a mobile app? Leo says that the earliest uses of MESH were through a mesh of internet hotspots with mobile phones.  It talked to other mobile devices and connected them. It was to create a network where there is no internet.  Here's an article about it -