Send the following on WhatsApp
Continue to ChatFirechat - "Off-The-Grid" Public Chat Without Using Internet/Coverage https://geardiary.com/2015/03/15/firechat-off-the-grid-public-chat-without-using-internetcoverage/
Firechat - "Off-The-Grid" Public Chat Without Using Internet/Coverage https://geardiary.com/2015/03/15/firechat-off-the-grid-public-chat-without-using-internetcoverage/