Hi -
You may refer to this Cisco doc - http://www.cisco.com/en/US/customer/docs/voice_ip_comm/connection/2x/requirements/20cucsystemreqs.html
Note: Checking voice messages from Exchange requires an IMAP client. Two big caveats:
- Users can only retrieve, save, and delete voice messages. Users cannot reply to or forward voice messages.
- Users cannot play secure voice messages by using the IMAP client.
If you want true unified messaging, with voice messages in the user's inbox and the ability to reply and forward voice messages, you will need a Unity server, not Connection. However, as the document states, you can pretty much do what your poast was asking. Unity Connection 2.0 is a Linux server and as such, will not be installed in your domain. Here is a link to the install guide - http://www.cisco.com/en/US/customer/docs/voice_ip_comm/connection/2x/installation/guide/2xcucig010.html#wp1069923
Ginger