Cisco IP Phone Hardware
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Overview of the Cisco IP Phone 6800 Series Multiplatform
Phones
The Cisco IP Phone 6800 Series Multiplatform Phones comprises a set of full-featured VoIP
(Voice-over-Internet Protocol) phones that provide voice communication over an IP network. The phones
provide all the features of traditional business phones, such as call forwarding, redialing, speed dialing,
transferring calls, and conference calling. The Cisco IP Phone 6800 Series Multiplatform Phones is targeted
for solutions that are centered on third-party SIP-based IP PBX.
In the following figure, the Cisco IP Phone 6821 Multiplatform Phones is on the left. The Cisco IP Phone
6841 and 6851 Multiplatform Phones look the same, and are in the middle. The Cisco IP Phone 6851
Multiplatform Phones support Key Expansion Module(KEM). The Cisco IP Phone 6861 Multiplatform Phones
is on the right.
Overview of the Cisco IP Phone 6800 Series Multiplatform Phones, on page 23
Cisco IP Phone 6821 Multiplatform Phones Connections, on page 24
Cisco IP Phone 6841 Multiplatform Phones Connections, on page 25
Cisco IP Phone 6851 Multiplatform Phones Connections, on page 25
Cisco IP Phone 6861 Multiplatform Phones Connections, on page 26
Cisco IP Phone 6821 Multiplatform Phones Buttons and Hardware, on page 27
Cisco IP Phone 6841, 6851, and 6861 Multiplatform Phones Buttons and Hardware, on page 29
Softkey, Line, and Feature Buttons, on page 30
Terminology Differences, on page 31
C H A P T E R
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
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