CmdID / PowerShell / Cmdlets / Get
Get-CsCallingLineIdentity
Use the Get-CsCallingLineIdentity cmdlet to display the Caller ID policies for your organization. Microsoft Teams PowerShell reference
From the Microsoft Teams PowerShell reference 2 parameters Its page in the reference
Parameters
-FilterThe Filter parameter lets you insert a string through which your search results are filtered.-IdentityThe Identity parameter identifies the Caller ID policy.