Features - 8 lines; 4 SIP accounts - Supported by GDMS which provides a centralized interface to configure; provision; manage and monitor Grandstream devices - RJ9 headset jack allowing EHS with Plantronics headsets; and integrated USB Headset support - Integrated Bluetooth to connect headsets; sync contacts; calendars and more - Full-duplex speakerphone with HD audio to maximize audio quality and clarity - Equipped with noise shield technology to minimize background noise - Dual switched autosensing 10/100/1000 Mbps Gigabit Ethernet ports with integrated PoE - Supports 5-way audio conferencing for easy conference calls - Enterprise-level protection including secure boot; dual firmware images; and encrypted - Swappable faceplate to allow for easy logo customization data storage - Integrated dual-band Wi-Fi 802.11 a/b/g/n/ac (2.4Ghz & 5Ghz)