I wonder if Barbara over in Telephone Service (https://www.sundance-communications.com/cgi-bin/ultimatebb.cgi?/ubb/forum/f/33.html) would be able to give you some ideas. Maybe she's seen something that's worked for a case like this. Personally, I've seen this before, and we always end up telling the customer that the telco won't let you assign names, enhanced alternate routing, etc. based on DID; it's always based on circuit. Anyway, try posting a link to this topic over in her forum and see if she can help. It's worth a try.