This makes it sound like call quality will be better simply by originating from CDV. This might be true for CDV to CDV calls (or not), but any call going through the PSTN is going to be no better than any other call going through that PSTN (not that all PSTN connectivity is the same). Endpoints factor into it, too. And, sure, managed is better, but the PSTN is, by its nature, managed.
