[3.01] Corrections have been made to ensure that DND flashes while an extension is locked. This did not always occur in prior version 3 releases.
Reference: A090428002
[3.05] In prior version 3 releases if the user of an extension with Access Level 4 or 5 pressed INTERCOM and dialed the legacy code ##3, and they hadn't stored a PIN code, the extension could lock up. This is corrected and INTERCOM + ##3 sends the user to the Menu + Admin + Erase Pin Number (Menu + 04) menu.
Reference: A090812001