Not an expert but I've used it before. Think of it like gmail + VOIP put together. When you run an ad on google that incentizes a non-click action (i.e. call us

Not an expert but I've used it before. Think of it like gmail + VOIP put together. When you run an ad on google that incentizes a non-click action (i.e. call us!), to track that result, google randomly generates a phone number (I think) which then gets forwarded to your business. So let's say your widget business is 123-123-1234. When Johnny searches widget, Google will show 123-532-4355 (to track your attribution) then forward that to your real line. What call rail does is insert itself in that path, and basically serve as an inbox and faciliate that. So you can have someone offshore listen to the phone calls (or some other technological method) and say..."hey did this person actually book an appointment?". And then you can track that conversion, and theoretical ROI. I'm sort of misunderstanding the whole value prop of call rail, but this is no more nefarious than using a VOIP with call display and recording everything. If you can bait individuals (by paying Google Ads to place highly) to call you, then yeah, you can sort of figure out who they are right? I think that's the jist of it, just really amped up to make it sound cool.