– Primary Display 5.0″ color, 800*480 pixel / Secondary Display 2.3” color display—160 x 240 pixels
– 10 physical buttons on main screen, 6 physical buttons on secondary screen (dual LEDs – red,green)
– 4 softkeys
– 2 USB ports (1 USB A, 1 USB C)
– Wi-Fi & Bluetooth
– Hard buttons for phone, end call, messages, contacts, history, home, navigation cluster, headset, speaker, volume, mute
– LEDs for speaker, mute, headset, message, history
– All 96 buttons are accessible, without a physical expansion module (on main screen, or secondary screen)
– J100 Expansion Modules Support- Secondary screen is the first effective Expansion Module- 2 hardware J100 Expansion Modules
– Wideband audio in handset and headset
– Super Wide Band RJ9 Headset
– Full duplex speakerphone
– Super Wide Band Full Duplex Handsfree
– Ergonomic hearing aid compatible handset (FCC 508 compliant) supports TTD acoustic coupler
– Message waiting indicator
– Mute indicator with optional mute alerting
– IC call alerting with 360-degree visibility
– Dual-position stand, optional wall-mount stand
– Supports optional Bluetooth/W-iFi module
– Gigabit Ethernet (10 / 100 / 1000) line interface
– Secondary Gigabit Ethernet (10/100/1000 Mbps)
– PoE Class (IEEE 802.3af) registers as class 1 device and supports 802.3az
– “Energy Star Certified” AC to 5 volt adapter
Click link to download : AVAYA J189 Datasheet