Thank you guys for all your effort in trying to help me out on this. I checked the ARTE command on the ICS but the CDN 43 for all CCIS routes was already set to 1.

Still no go. Remind you: I do have name display if I call from the IPS2000 on one end of the CCIS chain all the way to the other IPS2000 on the other end of the CCIS chain. I also get name display if I only jump one CCIS route. It only appears to be a problem if I call from one of the IPS 2000 and hop through either the ICS to reach the SV8500, or call from the other IPS to the ICS via the SV8500.