I was able to setup the Phantom Ext (Name, 3 digits, No device, ACD Agent). I found the System Speed Call Assignment form and create a fake speed call that routed to my cell. Thank you.
Now I want to do it for real and link the phantom to the speed call. When I fill in the Speed Call form with the same 3 digits from the phantom ext in Speed Call Number field, the cell number (9+1+10) in Actual Number field, No for Toll and S/C for type I get an error, "The directory number is defined elsewhere." I'm interpreting this as a conflict between the value in the Speed Call field on the Speed Call form and the Phantom extension under User Configuration, correct? If so, how do I set it where people can search for the user in the phone book from their desk phone and dial the same ext?