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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. Lots of very short calls indicate
by closeparen 7y ago
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. Lots of very short calls indicate spammy behavior. So if you are B, you offer SIP trunking at below cost to legitimate customers, so that you can mix their call flow with the much more lucrative, 100% robocall traffic from A, and thereby stay on favorable terms with C.
I worked in this business briefly, the economics are fascinating. Your average mom and pop restaurant is very likely buying its VoIP transit from an entity like "B" in this story.
- EB66 7y ago> 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.