/mcpDescription Security Level Security Icon Call signaling is encrypted with TLS, call media is either unencrypted or partially encrypted. For example, the audio is encrypted, but not video. However, the Call Secure Status Policy indicates both must be encrypted for the call to have an Encrypted status. Authenticated call Shield Unauthenticated device with non secure audio and video Non secure call No icon Additional Information • Some phone models display only the lock icon (encrypted) and do not display the shield icon (authenticated) • The security status of a call can change for point-to-point, intracluster, intercluster, and multihop calls. SCCP line, SIP line, and H.323 signal toning support notification of call security status changes to participating endpoints. • For conference and barge calls, the security icon displays the security status of the conference. Secure Tones Overview Secure Tones can be configured to play on a Protected Phone at the start of a call. The tone alerts you to whether the other device in the call is secure or non secure—if the other device is non secure, you hear the nonsecure tone, if the other device is secure, you hear the secure tone. Unlike Secure Icons, which display on all phones, Secure Tones play only on phones that are configured as a Protected Device. If both phones in a call are secured, but only one phone is Protected, only the Protected Phone hears the tone. The following table lists the type of tone and what each means: Table 30: Secure Tones Description Secure Tones Secure call. Other phone is a secure phone. Three long beeps Non secure call. Other phone is non secure. Six short beeps Midcall Changes If the security status of the call changes during the call, a new secure or nonsecure tone plays midcall in order to alert the caller on a Protected Device of the new security status. Only a user who is on a Protected Device hears the tone: Types of Calls Secure tone works for the following types of calls: • Intracluster calls (IP to IP) • Intercluster calls that are deemed protected Security Guide for Cisco Unified Communications Manager, Release 15 and SUs 174 Basic System Security Secure Tones and Icons Overview