Aastra 9133i how do I get line2 to light up on call when line1 in use?

Hi all,

First, the ring group is set to "ringall" and the inbound routes is set to goto the ring group.

So I did a fresh install of Trixbox 2.8.0.3. With the old install if someone called in then line1 would lightup. Then if they were still talking on line1 and another call came in then line2 would blink.
With the new install if they are on line1 then their phone won't show the new call at all.

Is there an easy way to get this functionality back?

Thanks,
Patrick