Hi Jonathan,

Maybe this will help get you started;

Verify that the users and groups that will have voice mailboxes are configured before configuring Mailboxes.

The following information is required for adding or modifying a user:

Username The user ID. The username must be at least 3 and no more than 32 characters in length. Cisco Unity Express allows only letters, numbers, underscore (_), dot (.), and dash (-) in user IDs. User IDs must start with a letter. Do not use spaces in the username.

(Optional) Full name First and last name of the subscriber. Enter this name in quotation marks (" ").

(Optional) Group Name of an existing group in which this subscriber is a member.

(Optional) Password Password for logging into the Cisco Unity Express GUI. The password must be at least 3 and no more than 32 characters in length. Spaces are not allowed.

(Optional) PIN Personal identification number for logging into the TUI. The PIN must be at least 3 and no more than 16 digits in length.

EXEC mode:

1. username userid [create | delete | fullname [first "first-name" | last "last-name" |

display "full-name"] | group group-name | language "language"| password "password" | pin number]

2. show users

or

show user detail username userid

3. copy running-config startup-config

Configuration mode:

1. config t

2. username userid [create | phonenumber phone-number | phonenumberE164 full-number]

3. exit

4. show users

or

show user detail username userid

5. copy running-config startup-config

From this good doc;

http://www.cisco.com/en/US/products/sw/voicesw/ps5520/products_administration_guide_chapter09186a0080677969.html#wp1060327

Hope this helps!

Rob