Cisco 8831NR Administration Manual page 35

Cisco Unified IP Conference Phone 8831 and 8831NR
Initiate Secure Conference Call
You can initiate a secure conference call and monitor the security level of participants. A secure conference
call is established using this process:
Procedure
Step 1
A user initiates the conference from a secure conference phone.
Step 2 Cisco Unified Communications Manager assigns a secure conference bridge to the call.
Step 3
As participants are added, Cisco Unified Communications Manager verifies the security mode of each phone
and maintains the security level for the conference.
There are interactions, restrictions, and limitations that affect the security level of the conference call depending
on the security mode of the participant phones and the availability of secure conference bridges. For more
information about the interactions, see
Step 4 If the conference call is secure the
Initiate Secure Phone Call
A protected call is established when your phone and the phone on the other end are configured for protected
calling. The other phone can be on the same Cisco IP network or on a network outside of the IP network.
Protected calls can only be made between two phones. Conference calls cannot be protected.
A protected call is established using this process:
Procedure
Step 1 A user initiates the call from a protected phone (protected security mode).
Step 2 The phone displays the
for secure (encrypted) calls, but this does not mean that the other connected phone is also protected.
Step 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 unprotected phone, then the secure tone
does not play.
Note
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 security in the system. The following table provides information about changes to call security levels
when using Barge.
icon (encrypted) on the phone screen. This icon indicates that the phone is configured
Protected calling is supported for conversations between two phones. Some features, such as
conference calling and Cisco Extension Mobility are not available when protected calling is
configured.
Cisco Unified IP Conference Phone 8831 and 8831NR Administration Guide
Call Security Interactions and Restrictions, on page 25
icon is displayed on the screen.
Initiate Secure Conference Call
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