One of our buildings was unable to call a long distance number, so after checking out the route pattern in our building because we can call it, I see some differences when comparing the route pattern we use and the one they use, we both use route patern 6 but ours has a pfx of 1 and theres says 4, also were it says group number ours has group no. 15 theres says group no 5. Should these be the same or does it matter. The frl on both of them are the same.