You may dial internationally using your UT International Long Distance Authorization Code. International dialing is assigned to individual EIDs upon department request only. Phones that need to dial internationally, including faxes, must be provisioned by the ITS Network Business Office upon Request submission.
You may look up your long distance authorization code by using the LD Online service.
International Long Distance Dialing:
88 + auth code + * + 011 + intl number
Example: 88-000000*011-1234567, no pauses required
International Long Distance Dialing to Caribbean, US Territories, Canada (NANPA):
88 + auth code + * + 9 + intl number
Example: 88-000000*9-123-555-1234, no pauses required
Information on international rates may be found here: Long Distance International Rates
Country or City Codes or time differences may be found at http://countrycallingcodes.com.