Teams phone number assigned to another user

[IBN]

Hello Teams Community,

Please i need your help on this issue.

We are users of MS Teams phone solutions (Microsoft 365 Business Voice) which by Monday 7.2.2022. functioned neatly. On the specified date, we should have changed the person who is forwarding the calls and we receive the following error:

Microsoft.Teams.ConfigAPI.Cmdlets.internalSet-CsUserGenerated : 38516040334 is assigned to another user

For 4-5 months we've had the same treatment (there's a change of user on a regular basis) and everything's been neatly flicked.

The specified problem has already been reported to Microsoft by other users here: https://github.com/MicrosoftDocs/office-docs-powershell/issues/8742

here is the error 

[#2]

Hi,

Can you confirm if the number is assigned to any of the user account? Specifically can you try and lookup for the users in the deleted list. Ensure that the users licenses are removed in case we have deleted the user account post which it should work seamlessly.

With Regards,
Satish U