Yes, she did the entry with an 8 first (for an outside line), but with a "4" as the next digit she got the error.
Other 10 digits phone numbers, that don't start with a "4" and that were entered after the "8" digit worked just fine - they inputted and forwarded just fine.
Our office uses the call pickup "4" code quite a bit on a daily basis. Not sure why a "4", when used after the "8" entry on the IP phone it shows as a call pickup failure. Phone numbers that start with a "4" (it is an area code starting with a "4") call fwded on our 8528 phones in the building can be inputted and work just fine.
She also tried using a "1", even though the 404 area code is a local prefix and with her IP phone on our network she can out dial 10 digit numbers (with area codes) used around Atlanta like we can; without using a "1" in front (they are 10 digit numbers, but NOT long distance in the Atlanta area).
Of course, it could still be operator error, since I cannot verify her keyed entries myself.