Yealink MP54 Microsoft Teams Edition. Product type: IP Phone, Product color: Gray, Handset type: Wired handset. Operating system installed: Android, Compatible products: Microsoft Teams. Display: LCD, Display diagonal: 4", Display resolution: 800 x 480 pixels. Voice codecs: AGC, AJB, CNG, G.711a, G.711u, G.722, G.722.1, G.722.1C, G.723, G.726, G.729ab, OPUS, PLC, Silk,.... Ethernet LAN interface type: Gigabit Ethernet, Ethernet LAN data rates: 10,100,1000 Mbit/s, Supported network protocols: IPv4/IPv6, SNTP