Cisco Systems 7931G Manual De Usuario

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 may be secure.

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.

In some specialized environments, such as military or government offices, you may need to make and 
receive urgent or critical calls. If you have the need for this specialized call handling, your system 
administrator can add Multilevel Precedence and Preemption (MLPP) to your phone.

Keep these terms in mind:

Precedence indicates the priority associated with a call.

Preemption is the process of ending an existing, lower priority call while accepting a higher 
priority call that is sent to your phone.

Notify your system 
administrator about a 
suspicious or harassing call

Press MCID

. 

Your phone plays a tone and displays the message, “MCID successful.”

Want to choose a priority (precedence) 
level for an outgoing call

Contact your system administrator for a list of 
corresponding precedence numbers for calls.

Want to make a priority 
(precedence) call

Enter the MLPP access number (provided by your system 
administrator) followed by the phone number.

Hear a special ring (faster than usual) 
or special call waiting tone

You are receiving a priority (precedence) call. An MLPP icon 
on your phone screen indicates the priority level of the call.