[codingdave]

One best practice I'm aware of is to make sure no emergency plans rely on something as fragile as a tech platform, as the communication networks that such things depend on are likely to be down.

[vdvsvwvwvwvwv]

While it is good to have a backup (AM radio? Morse code?) Why eschew a sophisticated system thay 99.99% of the time will be available.

[codingdave]

Because that 00.01% of unavailability occurs during emergencies.

[vdvsvwvwvwvwv]

It doesnt unless there is a common cause. Out of control bushfire for example would unlikely cause a SaaS or 5G/satellite outage