Cannot assign phone number to licensed user - Microsoft Teams Calling Currently i'm doing some testing related to Microsoft Teams calling, It seems to me like Teams Admin center replication with M365 backend. According to my experience sometimes it can be quick, or replication can go up to long hours. Refer this - https://docs.microsoft.com/en-us/microsoftteams/assign-change-or-remove-a-phone- number-for-a-user but sometimes we get lucky using PowerShell. PS faster than GUI /Admin center since it is talking to M365 fabric directly. Try using PowerShell (Connect to Microsoft Teams first) #Connect to Microsoft Teams $credential = Get-Credential Connect-MicrosoftTeams -Credential $credential Once it prompt, use your Teams Admin login and password Once you connected following command will help you to assign using PowerShell Set-CsOnlineVoiceUser -Identity teste5@ enkiii.info -TelephoneNumber +136567xxxx -Verb...