Microsoft Teams block an inbound call

Andres Bohren

2022-12-17

Hi All,

Ever needed to Block a Telephone Number in Microsoft Teams Enterprise Voice. Here is how that can be done.

Block inbound calls

Get-CsInboundBlockedNumberPattern
New-CsInboundBlockedNumberPattern -Name "BlockMobile-01" -Enabled $True -Description "BlockMobile-01" -Pattern "^\+?41796937148$"

Be aware, that it could take up to 24 Hours until that Number is blocked.

Then the Caller will hear only a busy Signal

Get-CsInboundBlockedNumberPattern

You can Test your pattern Matching with the following Commandlet

Test-CsInboundBlockedNumberPattern -PhoneNumber +41796937148
Test-CsInboundBlockedNumberPattern -PhoneNumber 0796937148
Test-CsInboundBlockedNumberPattern -PhoneNumber 796937148

Remove-CsInboundBlockedNumberPattern -Identity BlockMobile-01
Get-CsInboundBlockedNumberPattern

Regards
Andres Bohren