> How does T-Mobile know there's a problem worth calling the C NOC about? One way is to see the frequency and duration of calls. Or make it easier for consumer

> How does T-Mobile know there's a problem worth calling the C NOC about? One way is to see the frequency and duration of calls. Or make it easier for consumers to report spam calls. For example, dial *666 after hanging up on the spammer and it reports the last call as spam. Enough abuse reports originating from a particular carrier and T-Mobile knows there's a problem. That's basically how it works for email spam and other forms of Internet abuse.