You make a phone call, it rings and no one ever picks up. You would think that the person is not there to take the call and likely that their voicemail is broken. In the case of T-Mobile, you may have just been getting a fake ring tone. The FCC thinks so, and while T-Mobile is soaking up a $40M fine for this, it claims the fake rings were an unintentional oversight. You can read the court order here. T-Mobile admitted to inserting fake ring tones into “hundreds of millions” of the doomed calls, presumably to make the caller believe either that the phone was ringing at the receiver’s residence or business (and, presumably, that no one was picking up), or that the local terminating carrier was at fault, according to the agency.