Hi @Brett Kemp
There are three ways your phone numbers can be flagged as “scam likely” or “spam risk.”
1.A call recipient manually blocks your number using a call blocking app.
2.Carriers identify that you have been making too many outbound calls that match spam profiles.
3.One of your numbers was erroneously flagged.
Teams has built-in spam filtering to help you block unwanted calls, but it may also block certain legitimate calls if the recipient's carrier or device marks them as spam.
You can have the call recipient change the call policy using PowerShell to disable this feature using the following command
Set-CsTeamsCallingPolicy -Identity Global -SpamFilteringEnabledType "Disabled"
Please refer to this document for more details.
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