Internal Calls: Dial the last four digits (extension).
External Calls: Dial 9 + the seven-digit telephone number.
University of Ottawa operator assistance: Dial "0".
Long Distance Calls: Direct distance dial: dial direct using 9 + 1 + area code plus seven-digit telephone number.
Personal long distance calls: Dial 9 + 0 and ask the Bell operator to charge the call to your home telephone number.
