Indeed. And if by "customers" you also include all the automated systems that require a phone line connection, then those that *do* make use of the cellular data channel may well only be transferring a few MB per month, which might as well be a rounding error in comparison to even a "light" user with a basic smartphone. And then there's all the systems that still operate purely over the voice channel, exchanging data via ContactID, P100 and other tone-based protocols...