Collaborate with High-Quality Audio Communications The Cisco Unified IP Conference Phone 8831 delivers highly secure, comprehensive, mission-critical unified communications with wideband, full-duplex audio performance and flexible accessory options. It is ideal for conference rooms and executive offices within small businesses to large enterprises. Your business can benefit from Cisco Unified IP Conference Phone 8831 in many ways. Get audio communications support for executive offices and conference rooms up to 1500 square feet (139 square meters) with 360-degree room coverage. Cisco on-premise and cloud solutions, along with third-party communications servers, are supported. A full-duplex, two-way wideband (G.722) acoustic audio speaker delivers superior audio performance for a "good as being there" audio experience. You have a choice of accessory options with both wired and Digital Equipment Cordless Telephony (DECT) wireless extension microphones and charging stations. Administration and management features include - Private, highly secure, business audio communications through the 128K Advanced Encryption Standard (AES) - 10/100 Ethernet port to reduce cabling infrastructure and costs with support for a collocated PC - Class 3 Power over Ethernet (PoE) support for infrastructure reduction through elimination of local power cubes - Configuration, deployment, and management, just like other Cisco IP phones for faster, easier administration Display Touchscreen: Yes Display: LCD Display diagonal: 8.89 cm (3.5") Display resolution: 396 x 162 pixels Backlight display: No Audio Speakerphone: Yes Microphone mute: Yes Microphone frequency: 160 - 20000 Hz Voice codecs: G.711, G.722, G.729A, G.729B, iLBC Weight & dimensions Width: 263.5 mm Depth: 50.8 mm Height: 150.5 mm Weight: 1.59 kg Power Power over Ethernet (PoE): Yes Power requirements: PoE Class 3 / 48 VDC Operational conditions Operating temperature (T-T): 0 - 40 °C Storage relative humidity (H-H): 0 - 95% Storage temperature (T-T): 25 - 70 °C Network Ethernet LAN: Yes Wi-Fi: No Bluetooth: No Supported network protocols: SIP Quality of Service (QoS) support: Yes DHCP client: Yes Security algorithms: 128-bit AES, 802.1x RADIUS Networking standards: IEEE 802.3, IEEE 802.3af, IEEE 802.3u Phone features Caller ID: Yes Call waiting: Yes Call hold: Yes Call forwarding: Yes Conference call: Yes Redialing: Yes Call transfer: Yes Message-waiting indicator (MWI): Yes Certificates Safety: UL 60950-1, CAN/CSA-C22.2, EN 60950-1, IEC 60950-1, AS/NZS 60950-1: 2011, GB4943 2011 Management features Integrated voicemail: Yes Volume control: Digital Packaging content Base station: Yes Quick start guide: Yes Manual: Yes Other features Backlight: Yes Design Product type: IP Phone Product colour: Black Case material: Plastic Performance DECT connectable: Yes Logistics data Harmonized System (HS) code: 85171800