I am in the process of junking our 1992 phone system and have the selection narrowed to the NEC IPK 192 and the Avaya IP Office (406). EVERYONE I have talked to says to steer clear of the IP Office product. Except of course for the national vendor who claims to sell over a hundred per month. I don't think they would risk their reputation on a bad product. A local Avaya servicer would install it. I see a lot of experience on this forum and would like to know if you feel this product has a higher incidence of problems than other systems your are familiar with. As of now, we a talking only one office and using 4412 type phone, and maybe re-use some of our existing analog phones. No VoIP. I am looking at the "creature features" because if someone can not transfer a call for example, it's my headache. Voice mail and Auto Attendant are also very important. Thanks