Well the easiest answer to this question is, it depends…. You may be wondering what the pesky telemarketer hears on their end. So if you want to block a caller, you better make sure no one wants to receive calls from that number.
If a match is made, an incoming call is rejected.” However, there are a few caveats to this new feature: According to the Microsoft docs article, “ This feature allows a tenant global list of number patterns to be defined so that the caller ID of every incoming PSTN call to the tenant can be checked against the list for a match. Are you tired of pesky telemarketers calling you while you are trying to work but don’t know of a way to block that number from calling you? Well… you’re in luck because as of this week Microsoft has added the ability to block inbound calls from the PSTN.
