An Overview Of The Cisco Unified Ip Phone - Cisco 7975G Administration Manual

An Overview of the Cisco Unified IP Phone

The Cisco Unified IP Phone 7975G is a full-featured telephones that provides voice communication over
an Internet Protocol (IP) network. These phones function much like digital business phones, 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 Cisco Unified IP Phones are connected to your data network,
they offer enhanced IP telephony features, including access to network information and services, and
customizeable features and services. The phones also support security features that include file
authentication, device authentication, signaling encryption, and media encryption.
The Cisco Unified IP Phone 7975G provides a color touchscreen, support for up to eight line or speed
dial numbers, context-sensitive online help for buttons and features, and a variety of other sophisticated
functions.
A Cisco Unified IP Phone, like other network devices, must be configured and managed. These phones
encode G.711a, G.711µ, G.722, G.729a, G.729ab, iLBC, and decode G.711a, G.711u, G.722, iLBC,
G.729, G729a, G729b, and G729ab. These phones also support uncompressed wideband (16bits, 16kHz)
audio.
This chapter includes the following topics:
• Understanding the Cisco Unified IP Phone 7975G, page 1-2
• What Networking Protocols Are Used?, page 1-4
What Features are Supported on the Cisco Unified IP Phone 7975G?, page 1-7
•
Understanding Security Features for Cisco Unified IP Phones, page 1-9
•
Overview of Configuring and Installing Cisco Unified IP Phones, page 1-18
•
Caution Using a cell, mobile, or GSM phone, or two-way radio in close proximity to a Cisco Unified IP Phone
might cause interference. For more information, refer to the manufacturer documentation of the
interfering device.
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Cisco Unified IP Phone 7975G Administration Guide for Cisco Unified Communications Manager 6.0
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