Re: Lack of mains
Ditto!
The current phone network is reasonably resiliant when it comes to power outages, compared to the typical power redundacy available for the networks of a typical user.
After all, many wireless handsets come with a warning that the handset can't be used in a power cut & you need to furnish yourself with an old-school wired jobbie to make calls in an emergency.
Even some of the mobile networks have been less than great during power cuts.
I can imagine there being lots of confused folks around as this starts to filter out across the country. Really needs what you should do in a power cut clearly communicated & have clear expectations on providers laid out (which it probably already is in a 2,000 page standard buried in a basement somewhere).