Cisco Cius Обзор - Страница 18

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Cisco Cius Обзор
Identifying Secure (Encrypted) Phone Calls
Establishing and Identifying Secure Calls
A secure call is established when your Cisco Cius and a phone on the other end are configured for secure
calling. They can be in the same Cisco IP network, or on a network outside the IP network. A secure conference
call is established by using this process:
1 A user initiates the call from a secured Cisco Cius (Encrypted security mode).
2 Cisco Cius indicates the Encrypted status on the Enterprise security menu. This status indicates that Cisco
Cius is configured for secure calls, but does not mean that the other connected phone is also secured.
3 A security tone plays if the call is connected to another secured device, indicating that both ends of the
conversation are encrypted and secured. Otherwise, nonsecure tone will be played.
Note
Secure tone is played only when enabled on Cisco Unified Communications Manager. If disabled on Cisco
Unified Communications Manager, no secure tone will be played even the call is secure. For more
information, see the Configuring Secure and Nonsecure Indication Tones chapter of the Cisco Unified
Communications Manager Security Guide.
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 by using this process:
1 A user initiates the conference from a secure Cisco Cius device.
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
device and maintains the secure level for the conference.
4 Cisco Cius indicates the security level of the conference call.
Various interactions, restrictions, and limitations affect the security level of the conference call, depending
Note
on the security mode of the participant devices and the availability of secure conference bridges. Cisco
Cius supports secure audio conference calls only; video will not be secure.
Related Topics
Checklist for Configuring Cisco Cius in Cisco Unified Communications Manager, on page 22
Checklist for Installing Cisco Cius, on page 25

Call Security Interactions and Restrictions

Cisco Unified Communications Manager checks the Cisco Cius security status when conferences are established
and changes the security indication for the conference or blocks completion of the call to maintain integrity
Cisco Cius Administration Guide, Release 9.2(3)
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Overview of Cisco Cius
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