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Cisco Unified IP Phone 7970G/7971G-GE Administration Guide for Cisco Unified Communications Manager 7.0
OL-15299-01
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 1-2 shows 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,
configuration, and troubleshooting information for Cisco
Unified Communications Manager and Cisco Unified IP
Phones
Refer to Cisco Unified Communications Manager Security
Guide
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
phone when security is implemented
See Table 4-2 in the “Network Configuration Menu” section
on page 4-5
Understanding security icons in the Unified CM 1 through
Unified CM 5 options in the Device Configuration Menu on
the phone
See the “Unified CM Configuration” section on page 4-11
Items on the Security Configuration menu that you access
from the Device Configuration menu on the phone
See the “Security Configuration Menu” section on page 4-23
Items on the Security Configuration menu that you access
from the Settings menu on the phone
See the “Security Configuration Menu” section on page 4-29
Unlocking the CTL file See the “CTL File Menu” section on page 4-30