Favil X4U Enterprise IP Phone; 12 SIP lines, 6-way conference, SIP hotspot; 3 Line keys on the main display; HD audio on speakerphone and handset; 1x2.8” main color display, 1x2.4” side color displays for DSS keys; Support Bluetooth headset (Via BT dongle BT20); Support Wi-Fi connectivity (Via Wi-Fi dongle); Support EHS wireless headset; Up to 30 DSS keys(6 two-colored physical keys); Dual Gigabit ports, integrated PoE; Stand with 2 adjustable angles of 45 and 50 degrees