Local Presence

Local presence is a way for callers to look like they are calling from a local number. 

purchasing a batch of localized numbers purchased from a provider (rate center)

Look under my numbers - edit - advanced - choose group or turn off(up to 6 groups)

choose endpoint

extension - edit - advanced - use local presence searches the to phone number, which rate center it is in, chooses the closest number from the rate center and pops up that number as your caller ID.