Advanced Call Handling
Cisco Unified IP Phone Guide for Cisco Unified Communications Manager 8.5(1) (SCCP and SIP)
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Note There are interactions, restrictions, and limitations that affect how security features work on
your phone. For more information, ask your system administrator.
Note A device engaged in a call is either trusted or untrusted as determined by Cisco. Lock or shield
icons are not displayed on a Cisco Unified IP Phone screen when a call is to or from an
untrusted device, even though the call might be secure.
Tracing Suspicious Calls
If you are receiving suspicious or malicious calls, your system administrator can add the Malicious Call
Identification (MCID) feature to your phone. This feature enables you to identify an active call as
suspicious, which initiates a series of automated tracking and notification messages.
Verify that the phone
connection (call status) is
secure
Listen for a secure indication tone at the beginning of the call:
• Secure call status—If the phone is protected, the “Play Secure
Indication Tone” is enabled, and the call status is secure, a secure
indication tone plays on the protected phone at the beginning of a
call (three long beeps with pauses). The lock icon is also present to
indicate that the call is secure.
• Nonsecure call status—If the phone is protected, the “Play Secure
Indication Tone” is enabled, and the call status is nonsecure, a
nonsecure indication tone plays on the protected phone at the
beginning of a call (six short beeps with brief pauses). The play
arrow icon is also present to indicate that the call is not secure.
For more information, see your system administrator.
Determine if secure calls can
be made in your company
Contact your system administrator.
If you want to... Then...
Notify your system
administrator about a
suspicious or harassing call
Press MCID.
Your phone plays a tone and displays the message, “MCID successful.”
If you want to... Then...
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