Cisco Ip Phone Hardware; Cisco Ip Phone Hardware Overview - Cisco 7800 Series Administration Manual

Cisco IP Phone Hardware

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Cisco IP Phone Hardware Overview

The Cisco IP Phone 7811, 7821, 7841, and 7861 provides voice communication over an Internet Protocol
(IP) network. The Cisco IP Phone functions much like a digital business phone, allowing you to place and
receive phone calls and to access features such as mute, hold, transfer, speed dial, call forward, and more. In
addition, because the phone connects to your data network, it offers enhanced IP telephony features, including
access to network information and services, and customizable features and services.
The Cisco IP Phone 7841 supports Gigabit ethernet connectivity.
When adding features to the phone line keys, you are limited by the number of line keys available. You cannot
add more features than the number of line keys on your phone.
Table 13: Cisco IP Phone 7800 Series and Supported Line Keys
Phone
Cisco IP Phone 7811
Cisco IP Phone 7821
Cisco IP Phone 7841
Cisco IP Phone 7861
A Cisco IP Phone, like other network devices, must be configured and managed. These phones encode the
following codecs:
• G.711 a-law
Cisco IP Phone Hardware Overview, on page 21
Cisco IP Phone 7811, on page 23
Cisco IP Phone 7821, on page 24
Cisco IP Phone 7841, on page 25
Cisco IP Phone 7861, on page 26
Buttons and Hardware, on page 27
Terminology Differences, on page 29
Cisco IP Phone 7800 Series Administration Guide for Cisco Unified Communications Manager
C H A P T E R
Supported Line Keys
0
2
4
16
3
21