I've been getting more involved with our call manager setup. Other than me installing phones, it has basically been on auto pilot.
We have a list of allowed area codes that my boss gave the consultant when the Cisco voice system was initially installed a few years back. I've been poking around the call manager configs, but I can't find any place where those area code limitations are actually applied.
So an example is, I live in PA and I call dial out to a 215, 610 and so on. However, I can't dial out to my buddy in Arizona. So somewhere, there's some logic that is limiting outward dialing, but I can't find it. There are no special rules for outbound route patterns other than 9.@ and no filters to speak of.
Contacting the consultant isn't an option as he's no longer employed with the company who contracted the job originally.