Yeh RBCP, thats a good one, we've used it alot.
*67 doesn't work against toll free numbers. The reason for this is because the toll numbers are in essance private exchanges like the various government exchanges.
Windead, every state has numerous anac's, call backs, loops, test numbers, etc. Its because tech's are trained to use local numbers and not the toll free numbers. The toll free numbers are in essance a toll free foreign exchange to another number, which is local elsewhere.
If you read my PSAP text in the kbase you'll understand this a little better.