I've just completed installing Unity 3.1(5) on the ICS 7750 in a training environment where I'm setting up Networking between two Organizations across two separate ICS boxes. Exchange is on a different blade than Unity and so I installed my SMTP connector and IVC on the Exchange blade rather than the Unity blade. When I ran the Extension Address Utility on the Unity blade it listed all my Unity subscribers and displayed their proper network addresses but when I went to Active Directory and looked at their email addresses, the voice address and 2nd smtp address were not there. I had to add them manually. Is there a bug with the Extn Addr Utility with 3.1(5)?