WTF?
Since they are relying on 4G, and they all have mobile phones, why on earth don't they just use Telegram. It has one to one voice chats or you can broadcast to a group. If you want to be silent you can use text instead of voice. The source code is available so they can check it out and fork it if they want to change the way it works. Whats not to like?
Having said all that, I believe that some (perhaps most) of the source code is far from optimised to be read by "normal" humans. I have read that many coders think it is deliberately obfuscated, others just think it is just a very hard to understand style.
Who knows, but there may be the possibility that for a budget far less than what Motorola are asking, the telegram devs could make it work on servers running in UK and as a totally private and secure system.
Biting the hand that feeds IT
