I believe that 4.2 is one that can only go to one phone automatically. You assign one phone that rings to receive CLID. Now on the other phones that ring, it will show after they answer the phone. But if you want to see who it is before you answer, then press F811 to show before you answer. Now that can be tricky.
If you are on the phone and do F811 it will show ID of the call you are on. And if you are not on the phone but two lines are ringing which one is it showing.
I find it best to put that Feature code on a button.
Then when you want to check CLID info, I press the button twice, it then says SELECT A CALL, then press the ringing button ONLY ONCE. It will show ID in the window and you can scroll through for Name or number. IF you press the ringing line twice you actually answer the call.
Summary for a phone not showing ID.
It rings.
Press button for F811 Twice - it shows SELECT A CALL.
Press line button ONCE. It shows ID.
Press line button again to answer call.

This method also works for a phone that shows a line but does not ring.
See a line flashing (but not ringing) press F811, then the line flashing only ONCE. See caller ID.
If you want to answer, press flashing line again.

If CON is the opposite of PRO
Then what is the opposite of Progress?