Features: High-Definition 'HD' Voice Technology for Crystal-Clear Call Clarity - Service Dependent OBiTALK Cloud Management and Service Configuration Large Vivid Color Display - User Configured Themes and Multi-Dimensional Navigation Full-Duplex Speakerphone with Built-In Class D Amplifier and Audio Equalizer Dual Ethernet Ports with Power over Ethernet (PoE) Support - External 12v Power Supply Included