Specifications Color display—2.8 inches x 2.1 inches (7.0 cm x 5.3 cm)—Diagonal width- 3.5 inches (8.8 cm)
8 buttons with dual LEDs (red; green)
4 softkeys
Hard buttons for phone; messages; contacts; history; home; navigation cluster; headset; speaker; volume; mute
LEDs for speaker; mute; headset; message; history
24 administrative buttons
Wideband audio in handset and headset
Full duplex speakerphone
Ergonomic hearing aid compatible handset supports TTD acoustic coupler
Message waiting indicator
Mute indicator with optional mute alerting
IC call alerting with 360-degree visibility
Rich; classic; alternate; and downloadable ringtones
Dual-position stand; optional wallmount stand
Gigabit Ethernet (10 / 100 / 1000) line interface
Second Ethernet interface 10 / 100 / 1000 Mbps
PoE Class (IEEE 802.3af) registers as class 1 device and supports 802.3az
Optional AC to 5 volt adapter
Order Custom Bezels / Faceplates
SIP & H.323 protocol support
Standards-based codec support-G.711; G.726; G.729A / B; G.722; Opus.
Zero touch deployment via Device Enrollment Services Support