our company is changing their extension range from 1XXX to 2XXX. We do not have anymore spare mailbox licenses and I need to allow network messages from other sites to be able to send to the old mailbox. Is there anyway I can do translation of the 1XXX to 2XXX for incoming network messaging? I tried to create non-voice mailbox and divert the calls to the new mailbox but it does not help for network messages.