:) I have had the same problem a few projects ago. Another post to this suggested routing the call to IPCC Express which is an excellent Idea (If you have the install base). You can write a script to identify the call using the ANI and send the call to your choice of destination at that point.This would give you maximum flexibilty.
But....
Since you may only have a CCM/Unity install you can use Unity to do the same thing through the use of Call Routing rules. This may be the best option for you if you don't have IPCC express installed.
For Unity:
1. Create a route-point/ip phone with Call forward all to VM using the DN preferred within your dialing plan (target DN). Remember to come up with a backup strategy in the case of Unity Failure using the CFNA and CFB fields.
2. (Unity) Create a Call Handler to transfer the call to the desired destination outside of the VM System
3. Create a Unity Call Forwarding rule to match the call based on a specific ANI and use the above Call handler to forward the call to your desired destination.
Remember depending on your call volume to this DN you may see a spike in Skinny port consumption to Unity. :) Plan appropriately.
Let me know if this makes sense.
Thanks
Mike
