The Cisco 6851 IP phone features a 3.5-inch (396×162-pixel) grayscale display with white backlighting. For global users, localized language support is available. To support green initiatives, the 6800 Series is also energy-efficient and eco-friendly. The 6851 is Energy Star certified and includes a power-saving feature that reduces power consumption during off-hours, saving money by increasing energy efficiency. The 6800 Series is ideal for businesses looking to transition from traditional analog or digital-based phone systems to an IP communications system with multiplatform call control systems support. The Cisco IP Phone 6800 Key Expansion Module (KEM) adds additional buttons to the Cisco IP Phone 6851. This module adds 14 physical buttons as well as access to 14 more buttons via the page buttons, for a total of 28 new buttons. The KEM supports the Programmable Line Key (PLK) function but not SIP registrations. The PLK function can be used to monitor and answer calls, but it cannot initiate calls. The 6851 IP phone only supports one KEM.
- VoIP phone.
- 4 Lines.
- KEM Support.
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