[bobbiechen]

>My Android has "Scam Likely" show up when a scammer calls (I believe this is part of the STIR/SHAKEN protocol)

I'll point out that (at least on my phone with T-Mobile), "Scam Likely" comes from T-Mobile's "Scam ID" service. STIR/SHAKEN produces a different message, "Caller Verified", when a caller is confirmed. Source: https://www.t-mobile.com/support/plans-features/scam-id-and-...

[nikanj]

Is it possible to make your phone just flat out completely decline those calls?

[Cactus2018]

T-Mobile tags suspect numbers with "Scam Likely". Opt-in to decline these calls by dialing #662# - https://www.t-mobile.com/resources/call-protection

ps. Forward text message SPAM to 7726 - https://www.t-mobile.com/responsibility/privacy/fraud-spam/s...