I am running Cisco CallManager 3.3 and every so often a phone will lose the coporate directory option off of their phone. It is random on when it happens and to what phone it happens to. It has seemed to be only on our 7940 phones (but that is also 90% of the phones that are in use for our company). Resetting the phone from Cisco CallManager Administration will not help. The only way to get the corporate directory back is to physically unplug the phone and plug it back in. Any suggestions? Thanks.