[Myrddin]

Ok so number 1, it’s free. how so? Do you need a cell phone service? or can you take an Iphone 3g out of your draw and use it? if you can, you have my interest.

Zello needs a smart phone (Android or i-Phone) with the Zello client and a working wi-fi connection to your phone (or via your cellular network data plan). It works like most "push to talk" style radios. Address setup is free. A bit more manual than Skype.

[steve86]

Zello is basically a walkie-talkie app with more development than most and optimized for a large group sharing a channel.

[MayflowerMadam]

“Zello needs a smart phone (Android or i-Phone) with the Zello client and a working wi-fi connection to your phone”

I think it’ll work w/o a smart phone, and just a PC. Not positive, though.