CmdID / PowerShell / Cmdlets / Remove
Remove-CsPhoneNumberAssignment
Removes or unassigns a phone number from a user or resource account (online application instance). Microsoft Teams PowerShell reference
From the Microsoft Teams PowerShell reference 8 parameters Its page in the reference
Parameters
-HttpPipelinePrependSpecifies SendAsync pipeline steps to prepend to the generated HTTP pipeline.-IdentityThe identity of the specific user or resource account.-TelephoneNumber, -PhoneNumberThe phone number to unassign from the user or resource account.-NumberType, -PhoneNumberTypeThe type of phone number to unassign from the user or resource account.-RemoveAllUnassigns all phone numbers from the user or resource account.-NotifySends a best-effort email notification when a phone number is removed.-AssignmentBlockedForeverSets an indefinite block on assignment for the telephone number.-AssignmentBlockedDaysSets a duration-based assignment block on the telephone number.