HD audio, handset and speakerphone with support for wide-band audio 4 line keys with up to 4 SIP accounts, 8MPK extension keys with dual-color LED with 2 Left/Right keys Dual LCD screens with digital BLF keys Enterprise-level protection including secure boot, dual firmware images, and encrypted data storage Integrated dual-band 802.11 a/b/g/n/ac WiFi Dual switched auto-sensing 10/100/1000 Mbps Gigabit Ethernet ports with integrated PoE Integrated Bluetooth
