The Office of the Clerk (in both divisions) will be open to the public from 8:30 am to 4:30 pm. The Customer Service Information line for Chicago is (312) 408-5000 and Rockford is (815) 987-4350. These are answered from 8:30 am until 5:00 pm. The CM/ECF Help Desk Number: (312) 408-7765. Emergency New Case Filings Only: (773) 495-5842 and (312) 543-5460