Cisco Systems 7970G Understanding Security Features for Cisco Unified IP Phones, Topic Reference

Chapter 1 An Overview of the Cisco Unified IP Phone

Understanding Security Features for Cisco Unified IP Phones

Understanding Security Features for Cisco Unified IP Phones

Implementing security in the Cisco Unified CallManager system prevents identity theft of the phone and Cisco Unified CallManager server, prevents data tampering, and prevents call signaling and media stream tampering.

To alleviate these threats, the Cisco 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 7970G/7971G-GE (SIP) use the SIP 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 the Cisco Unified CallManager Security Guide.

If you configure security-related settings in Cisco Unified CallManager 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 CallManager 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 CallManager Security Topics
Topic		Reference
Detailed explanation of security, including set up,		Refer to Cisco Unified CallManager Security
configuration, and troubleshooting information		Guide.
for Cisco Unified CallManager and Cisco
Unified IP Phones
Security features supported on the Cisco Unified		See the “Overview of Supported Security
IP Phone		Features” section on page 1-14.
Restrictions regarding security features		See the “Security Restrictions” section on
		page 1-21.
Identifying phone calls for which security is		See the “Identifying Encrypted and Authenticated
implemented		Phone Calls” section on page 1-17.
	Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.1 (SIP), Cisco Unified IP Phones
1-12		OL-11524-01