I didn't check that yet. The MWI were illuminated on several phones already. I didn't try to turn those off via I believe it is #65 or something like that. I just wish Icould find the manual, I am actually a data geek, and got pulled into this one cause of my PC repair and former telephone experience. I just never learned Mitel, it was Executine, Inter-Tel,Vodavi lines. Anyone know where I can get the Inn Line manual or the integration notes? I plan on changing the DNIC if we have one, but I could use any other leads you guys think I should try. I will try the MWI option.