CISCO IP Phone 7911

Display: Graphical monochrome display (192 x 64 pixel resolution) Call Appearance: Single line Navigation Keys: Two-way navigation (Up/Down) Softkeys: 4 interactive soft keys that guide users through call features and functions Button Module Expansion: No Speakerphone: One-way speaker (speaker only, no microphone) Audio: G.711a, G.711, G.729a, G.729b, and G.729ab and iLBC audio-compression codecs Ethernet Connectivity: Dual Ethernet (10/100) line interface