Certainly getting into the conspiratorial, but telco providers have this concept of zero-rating for content they don't want applied to data rates. For example,

Certainly getting into the conspiratorial, but telco providers have this concept of zero-rating for content they don't want applied to data rates. For example, there are zero-rating projects for stuff like calls to analytics platforms. So were a telco to have a zero rate agreement in conjunction with some eavesdropping system, it would not show up.