Cisco CP-7962G Administration Guide - Page 29

Chapter 1 An Overview of the Cisco Unified IP Phone Understanding Security Features for Cisco Unified IP Phones Understanding Security Profiles All Cisco Unified IP Phones that support Cisco Unified Communications Manager use a security profile, which defines whether the phone is nonsecure, authenticated, or encrypted. For information about configuring the security profile and applying the profile to the phone, refer to Cisco Unified Communications Manager Security Guide. To view the security mode that is set for the phone, look at the Security Mode setting in the Security Configuration menu. For more information, see Security Configuration Menu, page 4-30. Related Topics • Identifying Authenticated, Encrypted, and Protected Phone Calls, page 1-15 • Security Restrictions, page 1-20 • Device Configuration Menu, page 4-17 Identifying Authenticated, Encrypted, and Protected Phone Calls When security is implemented for a phone, you can identify authenticated or encrypted phone calls by icons on the screen on the phone. You can also determine if the connected phone is secure and protected if a security tone plays at the beginning of the call. In an authenticated call, all devices participating in the establishment of the call are trusted devices, and authenticated by Cisco Unified Communications Manager. When a call in progress is authenticated, the call progress icon to the right of the call duration timer in the phone LCD screen changes to this icon: In an encrypted call, all devices participating in the establishment of the call are trusted devices, and authenticated by Cisco Unified Communications Manager. In addition, call signaling and media streams are encrypted. An encrypted call offers a high level of security, providing integrity and privacy to the call. When a call in progress is being encrypted, the call progress icon to the right of the call duration timer in the phone LCD screen changes to this icon: Note If the call is routed through non-IP call legs, for example, PSTN, the call may be nonsecure even though it is encrypted within the IP network and has a lock icon associated with it. In a protected call, a security tone plays at the beginning of a call to indicate that the other connected phone is also receiving and transmitting encrypted audio and video (if video is involved). If your call is connected to a non-protected phone, the security tone does not play. Note Protected calling is supported for connections between two phones only. Some features, such as conference calling, shared lines, Extension Mobility, and Join Across Lines are not available when protected calling is configured. Protected calls are not authenticated. Related Topic • Understanding Security Profiles, page 1-15 • Understanding Security Features for Cisco Unified IP Phones, page 1-11 • Security Restrictions, page 1-20 OL-21011-01 Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0 (SCCP and SIP) 1-15