Cisco 7941G Administration Guide - Page 39

Chapter 1 An Overview of the Cisco Unified IP Phone Understanding Security Features for Cisco Unified IP Phones Related Topic • Understanding Security Profiles, page 1-20 • Understanding Security Features for Cisco Unified IP Phones, page 1-13 • Security Restrictions, page 1-26 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. Call Security Interactions and Restrictions Cisco Unified Communications Manager checks the phone security status when conferences are established and changes the security indication for the conference or blocks the completion of the call to maintain integrity and also security in the system. Table 1-4 provides information about changes to call security levels when using Barge. Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE for Cisco Unified Communications Manager 6.1 OL-14620-01 1-21