Hey John,

This access is related to th User COS;

Subscribers > Class of Service > Features Page

Cisco Unity Inbox (Visual Messaging Interface)

Check this check box to allow subscribers who are assigned to this COS to use the Cisco Unity Inbox, which is a licensed feature. Note that when you give a COS access to a licensed feature, it can be important to track the number of subscribers who are assigned to the COS.

To confirm that the number of subscribers does not exceed the number of licenses, see the System > Licensing > License Counts page.

http://www.cisco.com/en/US/docs/voice_ip_comm/unity/5x/interface_reference/guide/ex/50curg020e.html

Access to the Cisco Unity Inbox is provided through the Cisco Personal Communications Assistant (PCA) website.

Go to http:///ciscopca.

http://www.cisco.com/en/US/docs/voice_ip_comm/unity/5x/user/guide/inbox/cuuginbx010.html

Hope this helps!

Rob