I just upgraded to CM2.0 and now the VM lights don't work for one site. Site 1 which is a G3 with the Intuity Audix system, works fine. Site 2 which is now an 8100 from an IP600 no longer gets VM light messages. I have checked the signaling group between the two and it looks fine, but the data extensions were changed in the signaling group. What else can I check?