[Battlemesh] Lorawan: wake up battery wifi nodes in the wild?

[Bastian Bittorf]

* Benjamin Henrion <zoobab at gmail.com> [02.05.2017 14:56]:
> I am looking for a simple radio solution to power wifi nodes in a
> remote area (with mostly no 2.4/5Ghz RF pollution) to wake them up
> from power off.

how long should the battery last without
recharging for the listening radio? what about using
GSM phones for that? so you can power them up via sms or call.
The are phones which can easily last several weeks...

bye, bastian