Secure Conference Call Identification - Cisco 7821 Administration Manual

Supported Security Features
• Play Secure Indication Tone: To enable the protected phone to play a secure or nonsecure indication
tone, set the Play Secure Indication Tone setting to True. By default, Play Secure Indication Tone is set
to False. You set this option in Cisco Unified Communications Manager Administration (System >
Service Parameters). Select the server and then the Unified Communications Manager service. In the
Service Parameter Configuration window, select the option in the Feature - Secure Tone area. The default
is False.

Secure Conference Call Identification

You can initiate a secure conference call and monitor the security level of participants. A secure conference
call is established by using this process:
1 A user initiates the conference from a secure phone.
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 and maintains the secure level for the conference.
4 The phone displays the security level of the conference call. A secure conference displays the secure icon
Interactions, restrictions, and limitations that affect the security level of the conference call depend on the
Note
security mode of the participant phones and the availability of secure conference bridges.
The following table provides information about changes to conference security levels depending on the initiator
phone security level, the security levels of participants, and the availability of secure conference bridges.
Table 10: Security Restrictions with Conference Calls
Initiator phone
security level
Nonsecure
Secure
Secure
Nonsecure
Secure
Cisco IP Phone 7821, 7841, and 7861 Administration Guide for Cisco Unified Communications Manager 10.0
(SIP)
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to the right of Conference on the phone screen.
Feature Security level of
used participants
Conference Secure
Conference At least one member is
nonsecure.
Conference Secure
Meet Me Minimum security level is
encrypted.
Meet Me Minimum security level is
nonsecure.
Results of action
Nonsecure conference bridge
Nonsecure conference
Secure conference bridge
Nonsecure conference
Secure conference bridge
Secure encrypted level conference
Initiator receives message Does not meet
Security Level, call rejected.
Secure conference bridge
Conference accepts all calls.