36 OL-22336-01
• Protected call—The phone is a secure (encrypted and trusted) device on the Unified CM server and
is configured as a “Protected Device” in Unified CM Administration.
If “Play Secure Indication Tone” is enabled (True) in Unified CM Administration, the protected
phone plays a secure or nonsecure indication tone at the beginning of the call:
–
When end-to-end secure media is established through the Secure Real-Time Transfer Protocol
(SRTP) and the call status is secure, the phone plays the secure indication tone (three long
beeps with brief pauses).
–
When end-to-end nonsecure media is established through the Real-Time Protocol (RTP) and
the call status is nonsecure, the phone plays the nonsecure indication tone (six short beeps
with brief pauses). (This capability is a change with this release.)
If the Play Secure Indication Tone option is disabled (False), no tone is played.
• Nonprotected call—The phone does not have a “Protected Device” status in Unified CM. No
secure or nonsecure indication tone is played.
• Non-secure call—The phone is not protected on the Unified CM server and the call status is
nonsecure.
For more information, see your system administrator.
If you want to... Then...
Check the security level of a
call or conference
Look for a security icon in the top right corner of the call activity area,
next to the call duration timer:
Authenticated call or conference
Encrypted call or conference
Non-secure call or conference
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