Will that allow the emergency list to override? I'd have to check it to be sure.
I've always used Disallow/Allow lists to do the job. In our area, may 7 digit numbers are long distance, and #401-XX-3 just looks at 1 as the first digit. So I got in the habit of disallowing everything (wild), and allow the local prefixes. If you don't assign any allow lists, it gives you the Intercom and 911.