One that they won’t mention is that you can get fairly inexpensive ($30-$70) walkie-talkies with ranges from 15 to 35 miles on ebay or Amazon. Theoretically, such devices are supposed to be registered with the FCC, but few people do unless they use them frequently.
Importantly, during emergencies you want to minimize chatter to just bare essentials, as such frequencies are likely to be monitored for emergency traffic. But if the phone is down, they are the fastest way to get help and keep in touch with loved ones at a distance.
(The other shocking, glaring shortfall of the manual is that they never so much as mention the possibility that one could even consider buying a gun and training how to use it should the need arise. No mention whatsoever.)
That's a good idea.
" walkie-talkies with ranges from 15 to 35 miles " I had no idea that walkie-talkies had that large a range. They used to sell them at Costco but the ranges were measured in feet or yards, not miles.