Yes. That would be awesome. But it doesn't exist. And a third-party/private company doesn't have the ability to do that without govt partnership. What they can do is develop a completely separate system with a sustainable business model and basically demonstrate how it can piggy back on existing emergency systems regardless of the capabilities of said system (ie one doesn't need to know if the 911 system is the "upgraded" version or make that determination during an emergency).

Also, in many cases a phone is not able to use (or has limited use) of data during a phone call. An sms would be able to go through concurrently. Imagine being on a 911 call. They ask you to click the W3W button (built in? Next to other on-call buttons?) and read out the response.

Not a w3w shill - but I think there's a use case for the emergency system that uses sms and it is usable right now and doesn't require any system wide upgrades. The only potential upgrade would be at the OS level just to simplify (button addition).

The ideal would be having the DB of W3w words locally so that it doesn't need the SMS gateway. Or having a completely open system...