The Cisco IP Phone 6800 Series with Multiplatform Phone (MPP) Firmware is a cost-effective high-fidelity voice communications portfolio designed to improve your organizations person-to-person communications while reducing your operating costs on approved Unified- Communications-as-a-Service (UCaaS) platforms.The 6800 Series combines an attractive new ergonomic design with always-on reliability and secure encrypted communications. The phones deliver advanced IP telephony features and wideband audio capabilities with an easy-to-use full-featured voice communications experience.The Cisco IP Phone 6800 Series provides four phone models (and an optional Key Expansion Module) to the Cisco Multiplatform Phone (MPP) portfolio (Figure 1):- Cisco IP Phone 6851 with Multiplatform Firmware supporting four SIP registrationsOnly the 6851 supports the Key Expansion Module (KEM).Cisco IP Phone 6800 Series product overviewThe line buttons on each model are fully programmable. You can set up line buttons to support either SIP registrations or call features such as speed dialing. You can also boost productivity by handling multiple calls for each SIP registration using the multiple-calls-per-line appearance feature. Tricolor LEDs on the line buttons support the calling features and make the phone simple to use.An affordable way to purchase hardwareCisco Webex Hardware as a Service provides a new way to purchase hardware with a simple scalable and flexible way to pay. Stay up to date with the latest models of IP Phones and Webex Devices to enhance collaboration and create workspaces for the future. And get ready for all the power of Cisco's unified cloud platform! Learn more about Webex Hardware as a Service and the devices available.Cisco IP Phone 6800 Key Expansion Module product overviewThe Cisco IP Phone 6800 Key Expansion Module (KEM) extends the capabilities of the Cisco IP Phone 6851 with additional buttons. This module adds 14 physical buttons along with access to 14 additional buttons via the page buttons for a total of 28 additional buttons. The KEM supports the Programmable Line Key (PLK) function but does not support any SIP registrations. Calls may be monitored and answered using the PLK function but calls may not initiated from the KEM. The 6851 IP phone supports one KEM only.Fixed function buttons on the 6800 series phones give you one-touch access to service messaging directory hold/resume transfer and conference features. A full-duplex speakerphone lets you set up clear multiparty conferences for flexible productive collaboration. The 6800 series provides exceptional noise isolation when used with a Cisco 500 Series Headset.The Cisco IP Phone 6800 Series maintains the same usability standards and standards for a context-sensitive user experience as the Cisco IP Phone 7800 Series. The 6821 IP phone has a 2.5-inch (240x120-pixel) grayscale display with white backlighting for easy reading. The 6861 has a 3.2-inch (320x120-pixel) LCD. The 6841 and 6851 IP phones each have a high-resolution 3.5-inch (396x162-pixel) grayscale display with white backlighting. The 6871 IP phone has a high-resolution 3.5-inch (480x272-pixel) color LCD. Localized language support is available for global users. See Table 6 for a list of available languages.The 6800 Series is also energy-efficient and eco-friendly to support green initiatives. The 6821 and 6851 support Power over Ethernet (PoE) Class 2. The 6871 supports Power over Ethernet (PoE) Class 3. The 6821 6841 6851 6861 and 6871 are Energy Star certified. The 6841 6851 6861 and 6871 support a power-save option that reduces power consumption during off-hours saving costs by increasing energy efficiency.The 6861 phone is Wi-Fi enabled phone in 6800 series. It supports built-in dual band Wi-Fi up to 802.11n. Also provides reliable wireless connection and convenient connection to access point via WPS (Wi-Fi Protected Setup).The 6800 Series is ideal for businesses that want to update their phone systems from traditional analog or digital-based systems to an IP communications system with supported multiplatform call control systems.