To view the security mode that is set for the phone, look at the Security Mode setting in the Security
Configuration menu.
Secure Phone Calls
Security is implemented for Cisco DX650 by enabling the Protected Device parameter from the Cisco Unified
Communications Manager Administration Phone window. When security is implemented, you can identify
secure phone calls by the Secure Call icon on the Cisco DX650 screen.
In a secure call, all call signaling and media streams are encrypted. A secure call offers a high level of security,
providing integrity and privacy to the call. When a call in progress is being encrypted, the Security Mode
status on Cisco DX650 Enterprise security settings menu indicates Encrypted.
If the call is routed through non-IP call legs, for example, PSTN, the call may be nonsecure even though
it is encrypted within the IP network and has a lock icon associated with it.
Note
In a secure call, a 2-second tone plays to notify the users when a call is encrypted and both devices are
configured as protected devices, and if secure tone features are enabled on Cisco Unified Communications
Manager. The tone plays for both parties when the call is answered. The tone does not play unless both devices
are protected and the call occurs over encrypted media. If the system determines that the call is not encrypted,
Cisco Desktop Collaboration Experience plays a nonsecure indication tone (6 beeps) to alert the user that the
call is not protected. For a detailed description of the secure indication tone feature and the configuration
requirements, see the
Cisco Unified Communications Manager Security Guide
.
Video is transmitted as nonsecure. So, even if both Cisco DX650 devices are secure, the
Encrypted
lock
icon will not be displayed for video calls.
Note
The following sections describe call security.
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 Cisco DX650 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 DX650 indicates the security level of the conference call.
Various interactions, restrictions, and limitations affect the security level of the conference call, depending
on the security mode of the participant devices and the availability of secure conference bridges. Cisco
DX650 supports secure audio conference calls only; video will not be secure. See
and Restrictions, on page 23
for information about these interactions.
Note
Cisco Desktop Collaboration Experience DX650 Administration Guide, Release 10.1(1)
22
Security Features
