866Microphone CutoffDescriptionMicrophone Cutoff lets a multiline terminal user turn off their telephone handsfree or handsetmicrophone anytime. When activated, Microphone Mute prevents the caller from hearing conversationsin the user’s work area. The user may turn off the microphone while their telephone is idle, busy on acall or ringing. The microphone stays off until the user turns it back on.ConditionsMicrophone Cutoff does not operate if the user calls another extension and the calledextension user responds without lifting the handset or pressing Speaker.When using the Handset Transmission Cutoff key during an intercom call with the handseton-hook, you hear three beep tones and the LED is on solid. This also occurs on anoutside call.When using the Handset Transmission Cutoff key during an intercom call with the handsetoff-hook, you hear three beep tones through the handset and the Handset TransmissionCutoff and MIC keys flash. This also occurs on an outside call.When Handset Transmission Cutoff is activated and the handset is off-hook, pressingSpeaker and returning the handset to the cradle turns off the Handset Transmission Cutoffkey. Three beep tones are heard over the telephone speaker.Default SettingEnabled (using MIC key)System AvailabilityTerminalsAll Multiline TerminalsRequired Component(s)NoneRelated FeaturesHandset MuteHandsfree Answerback/Forced Intercom RingingProgrammable Function Keys