I know how to make a COS password, but what I am not sure of is "Do I have to assign and restrict a line/line pool to all phones that the user of the COS password may use?" I have tried to use a phone with no lines/line pools assigned and all I get is "ACCESS DENIED". It seems to be a lot of useless programing to allow and restrict all the phones in the system on the chance that the "BOSS" may need to use one of the phones.