Yes, I have built the set on the CS1000, and on the SRG. I used existing sets as a guide and have verified settings between a known working set and this non-working set. When it "comes up" it displays the correct DN and is able to call within the SRG but not across to the CS1000. The display also says "Local Mode", which is usually fixed by redirecting the set to the CS1000, but not in this case.
Inside the SRG, the IP Terminal status displays the following:
"Invalid ID (2)-ID unknown within the call server