The 320 x 120 pixel display can manage up to 12 calls, via the 10 soft keys. 10 preprogrammed buttons offer instant access to frequently used capabilities while an additional 8 feature buttons with lights are provided to allow easy access to bridged line appearances, speed dials and a host of other features. A headset jack is built-in as are two 10/100/1000 switched Ethernet ports. The phone supports IEEE 802.3af Power over Ethernet. If local power is needed, a new local power supply (higher power) must be ordered separately (3C10444-XX). Requires NBX R5.0 or greater. Requires NBX Group 2 Device License (3C10412), sold separately.