Newb Chat Question

Hello, I just picked up a pair of Gotenna Mesh for consumer use. My brother and I are testing the devices.

If there are enough relay points in our town, should the 1-to-1 messages automatically travel to other nodes to get to his device…or is there something more we have to do to set that up.

He lives about 7 miles away, so our communications don’t reach each other. I plan to strategically place some relays, but I want to make sure I can set this up and everything will work prior to making the purchase.