UC520 software pack 8.1.0 recently reloaded with CCA 3.0. FXO PSTN connectivity using CO Lines on each phone.
When a call comes in and is picked up on a CO Line, the call is not able to be transferred using the Transfer soft button (it's grayed out), but it can be done by pressing the transfer key (on a 7931) and dialing the users extension. Also, they are unable to just press a "watched" extension button to transfer the call, they have to manually dial the extension number.
I have similar setup in our office here and have the buttons available, but we are running an older software pack loaded with an older version CCA (2.2 I believe).
Anyone know why this is happening?