Law-firm pages explain the statute but not the software. Software pages explain the software and get the statute wrong. These are written by people who had to build the thing, with every claim sourced and dated — because this area changes, and a page that was right two years ago is a liability now.
Every guide publishes a list of two-party consent states, and the lists disagree with each other. Here is why a list is the wrong mental model, and what to do instead if you record service calls.
If business texts are silently not arriving, this is usually why. What brand and campaign registration are, what unregistered traffic actually costs, and how to tell filtering apart from customers ignoring you.
Usually yes, with conditions that most businesses get wrong in the same two places. What the TCPA actually requires, what changed when the one-to-one consent rule was struck down, and where the real exposure sits.