POLY CCX 505 Business Media Phone with Open SIP and PoE-enabled. Product type: IP Phone, Product colour: Black, Handset type: Wired handset. Lines quantity: 24 lines. Display: LCD, Display diagonal: 12.7 cm (5"), Display resolution: 720 x 1280 pixels. Voice codecs: G.722, G.729ab, G.711alaw, iLBC, G.711ulaw, OPUS. Ethernet LAN interface type: Gigabit Ethernet, Ethernet LAN data rates: 10,100,1000 Mbit/s, Wi-Fi standards: 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n)