HD audio, handset and speakerphone with support for wide-band audio 6 line keys with up to 6 SIP accounts - Dual LCD screens with digital BLF Keys Integrated dual-band 802.11 a/b/g/n/ac Wi-Fi - Integrated Bluetooth Dual switched auto-sensing 10/100/1000 Mbps Gigabit Ethernet ports with integrated PoE Enterprise-level protection including secure boot, dual firmware images, and encrypted data storage