Hailo or similar works reliably for on demand cabs. It&#x27;s the &quot;call in an wait&quot; system that&#x27;s dying. In cities where taxi regulations are not very taxing on (eg London&#x27;s The Knowledge, New York Medallions) Uber found a way around them. They also added a convenient UI, but that works just as well for regular cabs.<p>Anyway, Uber <i>is</i> cabs, for any sane definition of them.