I can't find anything on the 4620 that talks about setting IP addresses using the handset. We are moving a system tomorrow evening and I always worry about something not working and having to put IP info in manually. Is it mute craft # like the newer sets? Is it even doable? I apologize for my lack of knowledge; I did skim both the admin guide and the users guide for the 46xx and didn't see anything. Thank you in advance.