Line Lights, Call Forward, and Intercom problems

Hello guys.

I'm a rank beginner who is trying to set up a 48 unit UC520 to replace our existing phone system. All the basics I need work, but a few nagging issues.

I have a single hunt group with 3 members and an AA as the final in my huntlist. The second ephoe-dn in the hunt group cannot receive internal transfers (yes, when the phone is idle).

I'm having some difficulty doing call transfers from the CIPC. Transfers work as expected on the hard phones (ie. 7971). CIPC version is 2.1.1.0.

Any confirmation/ advise on this issue?