Recent events (e.g. hurricanes in Texas) forced me to take a fresh look at communication apps you may need in a pinch. I explore these in my TCEA Technotes blog entry, Communication Apps Districts Can't Live Without.
It certainly is worth reading hand-in-hand with yesterday's disaster recovery blog entry.
Everything posted on Miguel Guhlin's blogs/wikis are his personal opinion and do not necessarily represent the views of his employer(s) or its clients. Read Full Disclosure