Gizmodo reports…

T-Mobile has admitted it engaging in misleading calling practices with its rural customers, and as part of an FCC settlement, is coughing up $40 million.

What exactly was T-Mobile trying to get away with? At issue is the practice of injecting false ring tones, causing rural customers to think their calls had already connected. Practically, that means while T-Mobile was trying to establish a link between parties—sometimes using additional local carriers for some of these more secluded customers—the phone was ringing in the earpiece of the caller, even though the callee might have never gotten a single ring.