Warren County officials will be modernizing the phone system in the administrative building on Locust Street. The call to upgrade will cost $4,400 to $4,900 for installation.During Monday night’s full Warren County Commission meeting, commissioners voted unanimously to allow an upgrade on the county’s telephone system. The measure passed 23-0, with the absence of Commissioner Bessie Smithson, who has been dealing with an illness.The recommendation to improve the county’s phone system came from Building and Grounds Committee members Carl Bouldin, Dwight O’Neal and Michael Martin, who voted unanimously last week to allow the change.