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Many departmental phones are restricted-use lines.
Authorization codes can be requested by department contacts by contacting the Telecommunications Billing group . Restricted dialing is designed to protect the University by preventing unauthorized users from making expensive toll calls from phones that are easily accessible, for example in a public reception area. The following procedures apply both to restricted and unrestricted Harvard phones. The only difference is that with restricted phones, you will need to key in an authorization code after you hear a beep calling card number to make toll calls. Click here to look up international country codes .