The Phone Numbers editor allows you to add (associate) and remove (disassociate) phone numbers from one service to another. You can re-assign Local Caller ID (LCID) packages to a different inbound service by clicking Associate Service. You can also rotate these LCID packages on different portfolios, keeping the Caller ID numbers fresh and callback rates higher. The Disassociate Service button allows you to unassign a number from a service, which keeps the number within the client.
For more information on how to add (associate) / remove (disassociate) inbound phone numbers with services, see the Phone Numbers Tab section of the Services editor.