Therefore, you will first setup the Call Queue and than a new Line Identity. This Identity you must grant as Policy explicit to the call queue identity.
-Identity "SupportCallQueue `
-CallingIdSubstitute "Support" ServiceNumber "+4989123456789" `
-EnableUserOverride False -Verbose
-Identity "email@example.com" `
Now, if an agent initiate an outbound call, the calling ID displayed for the with be the new call queue number instead of his personal LineURI.