Before you can make an international phone call using your on-campus phone, you will need to have your long distance phone code entered into the Cisco phone system.  If your code hasn't been entered, contact OIT at (303)735-HELP or

*Leave the receiver down while dialing*

dial phone number (including 011 and country code)

press #

wait 30 seconds or so

screen will direct you to enter your authorization code

enter your long distance code (you may need to press # after you enter your long distance code)

wait about 40 seconds, and the call should go through