Allow Intraoffice Calls After Hours Merged

Our office hours are 8-5. During those times, our employees can call/ring each other and talk. However, if it is before we open or after we close, when they call each other, it follows the after-hours rules. I would like to propose adding an option where if a call is coming from another user, it will always ring (or being able to set custom times for intraoffice calls that are different than the open hours)