Yealink SIP-T31G. Product type: IP Phone, Product color: Gray, Handset type: Wired handset. Lines quantity: 2 lines, Phonebook capacity: 1000 entries. Display: LCD, Display diagonal: 2.3″, Display resolution: 132 x 64 pixels. Voice codecs: G.722, G.729, AGC, G.729A, AJB, PLC, G.711Mu, VAD, G.711a, G.723.1, G.726, iLBC, CNG, OPUS. Ethernet LAN interface type: Gigabit Ethernet, Ethernet LAN data rates: 10,100,1000 Mbit/s, Networking standards: IEEE 802.3af, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x
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