Thanks for the update. Which star codes will be supported? I'd break them down into the following categories:

Must have:
*67 - per call CID block
*82 - per call CID allow (if you add a 'permanent CID block' feature to the vPanel, which I would also recommend)
*69 - Call return

Nice to have:
*70 - per call disable Call Waiting
*66 - busy line ringback (relatively low priority, though, as busy signals are becoming more and more infrequent as more people subscribe to CW and voicemail services)
*71 or *72 - Activate call forwarding (double-check vertical service codes on NANPA--as mentioned before, I prefer the 'standard' codes be assigned)
*73 - Cancel call forwarding
*?? - Enable/Disable Do Not Disturb (Except white list and E911 return calls, all calls are routed directly to VM)