Cisco 7971G-GE Administration Guide - Page 28
Establishing and Identifying Secure Conference Calls
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Understanding Security Features for Cisco Unified IP Phones Chapter 1 An Overview of the Cisco Unified IP Phone Establishing and Identifying Secure Conference Calls You can initiate a secure conference call and monitor the security level of participants. A secure conference call is established using this process: 1. A user initiates the conference from a secure phone (encrypted or authenticated security mode). 2. Cisco Unified Communications Manager assigns a secure conference bridge to the call. 3. As participants are added, Cisco Unified Communications Manager verifies the security mode of each phone (encrypted or authenticated) and maintains the secure level for the conference. 4. The phone displays the security level of the conference call. A secure conference displays (encrypted) or (authenticated) icon to the right of "Conference" on the phone screen. If icon displays, the conference is not secure. Note There are interactions, restrictions, and limitations that affect the security level of the conference call depending on the security mode of the participant's phones and the availability of secure conference bridges. See Table 1-4 and Table 1-5 for information about these interactions. Establishing and Identifying Protected Calls A protected call is established when your phone, and the phone on the other end, is configured for protected calling. The other phone can be in the same Cisco Unified IP network, or on a network outside the IP network. Protected calls can only be made between two phones. Conference calls and other multiple-line calls are not supported. A protected call is established using this process: 1. A user initiates the call from a protected phone (protected security mode). 2. The phone displays the icon (encrypted) on the phone screen. This icon indicates that the phone is configured for secure (encrypted) calls, but this does not mean that the other connected phone is also protected. 3. A security tone plays if the call is connected to another protected phone, indicating that both ends of the conversation are encrypted and protected. If the call is connected to a non-protected phone, then the secure tone is not played. Note Protected calling is supported for conversations between two phones. Some features, such as conference calling, shared lines, Extension Mobility, and Join Across Lines are not available when protected calling is configured. 1-14 Cisco Unified IP Phone 7970G/7971G-GE Administration Guide for Cisco Unified Communications Manager 7.0 OL-15299-01