Chapter 1 An Overview of the Cisco Unified IP Phone

Understanding Security Features for Cisco Unified IP Phones

To alleviate these threats, the Cisco Unified IP telephony network establishes and maintains authenticated and encrypted communication streams between a phone and the server, digitally signs files before they are transferred to a phone, and encrypts media streams and call signaling between

Cisco Unified IP phones.

The Cisco Unified IP Phones Series use the Phone Security Profile, which defines whether the device is nonsecure, authenticated, or encrypted. For information on applying the security profile to the phone, refer to Cisco Unified Communications Manager Security Guide.

If you configure security-related settings in Cisco Unified Communications Manager Administration, the phone configuration file will contain sensitive information. To ensure the privacy of a configuration file, you must configure it for encryption. For detailed information, refer to the “Configuring Encrypted Phone Configuration Files” chapter in Cisco Unified Communications Manager Security Guide.

Table 1-2shows where you can find additional information about security in this and other documents.

Table 1-2

Cisco Unified IP Phone and Cisco Unified Communications Manager Security Topics

 

 

 

Topic

 

Reference

 

 

Detailed explanation of security, including set up,

Refer to Cisco Unified Communications Manager Security

configuration, and troubleshooting information for Cisco

Guide

Unified Communications Manager and Cisco Unified IP

 

Phones

 

 

 

 

Security features supported on the Cisco Unified IP Phone

See the “Overview of Supported Security Features” section on

 

 

page 1-10

 

 

Restrictions regarding security features

See the “Security Restrictions” section on page 1-17

 

 

Viewing a security profile name

See the “Understanding Security Profiles” section on

 

 

page 1-12

 

 

Identifying phone calls for which security is implemented

See the “Identifying Authenticated, Encrypted, and Protected

 

 

Phone Calls” section on page 1-13

 

 

 

TLS connection

 

See the “What Networking Protocols Are Used?” section on

 

 

page 1-3

 

 

See the “Understanding Phone Configuration Files” section on

 

 

page 2-6

 

 

Security and the phone startup process

See the “Understanding the Phone Startup Process” section on

 

 

page 2-7

 

 

Security and phone configuration files

See the “Understanding Phone Configuration Files” section on

 

 

page 2-6

 

 

Changing the TFTP Server 1 or TFTP Server 2 option on the

See Table 4-2in the “Network Configuration Menu” section

phone when security is implemented

on page 4-5

 

 

Understanding security icons in the Unified CM 1 through

See the “Unified CM Configuration” section on page 4-11

Unified CM 5 options in the Device Configuration Menu on

 

the phone

 

 

 

 

Items on the Security Configuration menu that you access

See the “Security Configuration Menu” section on page 4-23

from the Device Configuration menu on the phone

 

 

 

Items on the Security Configuration menu that you access

See the “Security Configuration Menu” section on page 4-29

from the Settings menu on the phone

 

 

 

Unlocking the CTL file

See the “CTL File Menu” section on page 4-30

 

 

 

Cisco Unified IP Phone 7970G/7971G-GE Administration Guide for Cisco Unified Communications Manager 7.0

 

OL-15299-01

1-9

 

 

 

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Cisco Systems 7971G-GE, 7970G manual Topic Reference, Refer to Cisco Unified Communications Manager Security
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7970G, 7971G-GE specifications

The Cisco Systems 7971G-GE is a sophisticated IP phone designed for enterprise communication, offering a range of features that enhance productivity and collaboration. As part of the Cisco Unified Communications portfolio, this phone is known for its impressive technology and reliable performance.

One of the main features of the 7971G-GE is its high-resolution color display. The 5-inch LCD screen provides users with a visually appealing and intuitive interface, allowing for easy navigation through menus and contacts. The phone supports up to six lines, making it ideal for users who require multiple lines for simultaneous calls. Users can effortlessly manage calls with the ability to switch between lines and access important call features like hold, transfer, and conference calling.

In terms of audio quality, the Cisco 7971G-GE is equipped with high-definition voice technology. This feature ensures crystal-clear sound during calls, reducing background noise and enhancing the clarity of conversations. The phone also supports wideband audio codecs, enabling a richer voice experience that is particularly valuable in business environments.

The phone is designed with user convenience in mind. It offers programmable buttons that can be customized to suit individual needs, allowing easy access to frequently used functions or contact lists. Additionally, the presence indicator feature lets users see the availability of their colleagues in real-time, promoting more effective communication and collaboration.

Networking capabilities are another strong point of the Cisco 7971G-GE. The phone supports both Power over Ethernet (PoE) and standard Ethernet connectivity. This enables easy deployment without the need for additional power outlets. Moreover, the device is compatible with various Cisco communication platforms, integrating seamlessly with existing Cisco infrastructure, which is essential for businesses looking to upgrade their communications systems.

Security is a crucial consideration for modern enterprises, and Cisco addresses this with robust encryption features that protect voice and video calls. The phone supports secure signaling and media encryption, ensuring that sensitive conversations remain confidential.

Overall, the Cisco Systems 7971G-GE is a feature-rich IP phone that combines advanced technology with user-friendly design. Its high-definition audio, customizable features, and seamless integration with Cisco networks make it a popular choice for businesses seeking to improve their communication systems. With its reliability and performance, the Cisco 7971G-GE continues to support effective collaboration in an increasingly connected world.
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