M3900 Series telephone features are labeled directly through the telephone displays, eliminating the need for paper labels.
Users can customize their feature labels and many characteristics of their telephones.
Also, telephones can be upgraded via software downloads as new features become available. This is faster and less costly than upgrading each telephone individually and helps provide investment protection. The display-based user interface can help increase user productivity by showing more information such as directories and call logs. The call log enables users to scroll through the display to see who has called and also review calls that have been made from that particular telephone. The M3902 through M3905 have displays and hands-free capability.