Windows 7 phone uses ActiveSync to interact with OIT's Exchange service. With Exchange configured, you will be able to view the account's various mailboxes, and create custom mailboxes.
If this is the first account to be set up on your phone, tap Email Setup from the main screen and go to step 5.
If this is not your first account tap the right arrow as shown in the screenshot to the left and got to step 2.
Type in your e-mail address under the field named the same, type in your Identikey password in the Password field, and then tap sign-in.
The phone will most likely not understand the account information with just the e-mail address and password so it will add two more fields, User name and domain. In the User name field type your CU login name, then in the domain field type ad, then tap sign in.
Your account will now be setup and an icon for this account will appear on the main screen.