Applies To

Call2Teams - Customers



Currently the Sync process does not remove the Resource's account's Direct Dialling In (DDI) and calling policies. 

Customers must remove these from the Microsoft Tenant if they are planning to re-use the DDIs for other users. 


Remove the Resource Account's DDI's from the C2T portal first. 

Run a sync and then remove the DDI's and calling policies from Microsoft Teams using the PowerShell commands below:

Connect to Microsoft Teams PowerShell

Connect to Microsoft Teams PowerShell Module as described in the link here.

Remove DDI

Enter the following command:

Set-CsOnlineApplicationInstance -Identity "Email Address" -OnpremPhoneNumber $null

To confirm the script worked: Navigate to Microsoft Teams Admin Portal >Voice > Resource Account > Phone 

The number should no longer appear. 

Removing Policies

Enter the following commands:

Grant-CsHostedVoicemailPolicy -Identity "Email Address" -PolicyName $null


Grant-CsOnlineVoiceRoutingPolicy -Identity "Email Address" -PolicyName $null


Grant-CsTeamsCallingPolicy -identity "Email Address" -PolicyName $null

External Information


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