POLY Edge E400 IP Phone and PoE-enabled. Product type: IP Phone, Product color: Black, Handset type: Wired handset. Lines quantity: 8 lines. Display: IPS, Display diagonal: 3.5", Display resolution: 320 x 240 pixels. Voice codecs: G.711alaw, G.711ulaw, G.722, G.722.1, G.729ab, OPUS, iLBC. Ethernet LAN interface type: Gigabit Ethernet, Ethernet LAN data rates: 10,100,1000 Mbit/s