Screen : 2.4-in. (6-cm) color display with 240 x 320 pixel resolution Lines : 6 Networking : IEEE 802.11a/b/g/n/ac (Wi-Fi) Voice Codecs : G.722, G.729a, G.729ab, G.711u, G.711a, iLBC and Internet Speech Audio Codec (iSAC) Network Features : SIP Signaling protocol support : Yes Features : Wireless Interface Provided (Bluetooth), Caller ID, Call Waiting, Call Forwarding, Call Hold, Conference Call Capability, Speakerphone, Volume Control, Indicators, Intercom Power Supply : N/A Dimensions : 13.2 x 5.6 x 1.7 cm Weight : 163 g