20 M3900 series general descriptionThe switch administrator performs password reset using the commandinterface (CI) command, RESETPWD. If a user forgets the password, theRESETPWD command resets the password for all directories.When you perform Password Reset on a terminal with password protectionenabled, the user must enter the new password to gain access to a list.After performing password reset on a terminal with password protectiondisabled, the user enters the new password the next time passwordprotection is enabled. Use the RESETPWD command to assign the newpassword.With M3900 Release 3, the administrator can disable the passwordfunctionality using the Password Clear enhancement by entering"00000000" (that is, eight zeros), instead of a new password. The userthen will not be required to enter a password.Desktop directory number downloadThe Meridian digital telephones display the DN associated with a DN keyor the feature assigned to a feature key on a display area next to each oftheir keys. This display area eliminates the need for paper labels. Thedirectory download occurs when you provision new DNs on the set or addnew features.Limitations and restrictionsDN download and feature key labeling only apply to Meridian digitaltelephones equipped with a display. The M3902, M3903, M3904, M3905,and the DBA use this function. The M3901 set does not use this function.The M3902 set has a 2 x 24 character display. The keys for DN featureshave enough space for seven characters for both DN and features.The M3903 set has a 3 x 24 character display. The keys for feature keysare limited to 10 characters.The M3904 set has a 5 x 24 character display. The keys for features arelimited to 10 characters.The M3905 set has a 4 x 24 display. The keys for features are limited to10 characters.The M3904 and M3905 sets support a maximum of two KBAs or one DBA.A set that has at least one KBA cannot have a DBA and vice versa.InteractionsThe analog terminal adapter (ATA) functions with the M3900 sets.Nortel Communication Server 2100M3900 Series Meridian Digital Telephones User GuideNN42200-110 09.01 Standard20 August 2008Copyright © 2008 Nortel Networks.