M 3900 description Page 125 of 504
Telephones and Consoles Description, Installation, and Operation
• Display-Based Accessory Module (M3904)
• Flash download of firmware (M3902, M3903, M3904. and M3905)
• Language selection during software installation for M3900 Series Digital
Telephones
The M3900 Series Digital Telephones, X11 Release 25.40 (Phase III) and
later, supports the following features and enhancements:
• Full Duplex Handsfree (M3904 Phase III)
• System-initiated language selection (M3902, M3903, M3904, and
M3905)
• Call Forward enhancements (M3903, M3904, and M3905)
• 31-digit dialing (M3902, M3903, M3904, and M3905)
• Callers List soft key (M3903, M3904, and M3905)
• Redial List soft key (M3903, M3904, and M3905)
• Pause in dialing string (M3902, M3903, M3904, and M3905)
• Special character support (M3902, M3903, M3904, and M3905)
• Headset state support (M3903, M3904, and M3905)
• Set-to-Set Messaging enhancements (M3903, M3904, and M3905)
• One-button feature access to Corporate Directory (M3903, M3904, and
M3905)
• Corporate Directory search enhancement (M3903, M3904, and M3905)
• M3900 (single site) Virtual Office enhancements
• Virtual Office clearing of the Callers List and Redial List (M3903 and
M3904)
• Automatic log out of Virtual Office
• Speed Call for Virtual Office
• System-initiated language download
• Personal Directory fixed feature key