ubiquitous communication systems would allow you to make arrangements for the above, especially in situations where time may be crucial
It sure would. So perhaps rather than spending millions launching a fleet of thousands of satellites into orbit which will interfere with astronomy, we should look into other options, like supplying all these remote villages with satphones. Or CB Radios. Or EPIRBs. These solutions are cheaper, easier to maintain/repair, and more durable than an android tablet. And they probably need less power, too. If these villages are so remote as to not have phones, then power is also likely to be an issue. Yeah, satphones are expensive, but we're talking about irregular calls that are for emergencies, meaning the calls will be short and not that expensive.
Or, perhaps, maybe if we're going to buy them all android tablets (if it's for general communication too rather than just important stuff then you'd have to buy one for every villager, otherwise you're going to create conflict), perhaps we should think about using that money to buy them water pumps instead? Or maybe a few km of pipe so they can build a water pipeline? you know, actually address the root problem rather than applying band-aids? I know, I know, you want the band-aid because it's totally trendy and shiny and also enables cat videos and a new untapped market for advertisers (what do these insane advertisers think dirt poor people in remote villages with no phones are going to buy?), but I tend to think that actually addressing the real issue is probably going to be more effective and more cost-effective.
Assuming, of course, that we're actually talking about helping people and not advertising to them, or spying on them, or exploiting them as cheap callcenter labour, etc etc.