i have an 800 # that terminates to a POTS line that somehow (this is where i need help) seems to also ring to an internal DN in my PBX. If i call the POTS line OR the DN i ring to the same key on the person's phone whose responsibility it is to answer this 800 #. If not answered, I go to an external voicebank. What is the purpose of having the POTS line first point to an internal DN (it is NOT programmed as a PVR and it is NOT a DID so i have no idea how it's even getting there) and then the voicebank? please advise. thank you.