Location Verification without GPS?

How would you build a sightseeing app that recommends close by sights, without using GPS?

In this talk I will present how to use Telekoms currently incubating APIs to verify a phone number’s location close to a given sight, without needing to request the actual phone’s GPS, just by the power of the network.

I will go through the general make-up of the server, talking about Ktor as the server, KMP as the JS frontend and how the location verification magic works.

And obviously I end up in how to send an SMS to the client who signed up for the sight seeing.