Mitel 5212, 5224 Headset Operation (with Feature Control Switch)

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Headset Operation (with Feature Control Switch)
IMPORTANT NOTE: Mitel Networks Headsets with Feature Control Switch
must be installed in the dedicated headset jack on the back of the phone.
Installation will disable your handset microphone. Disconnecting the headset
at the jack or at the quick–disconnect plug restores handset operation. If
handset operation is required for an extended period of time, you should
press the Headset feature key to return the telephone to handset mode.
To enable or disable Headset Operation:
zPress the Headset feature key.
To answer a call:
zPress flashing Line Appearance key
–OR–
Quickly press and release the headset's feature control switch.
To mute the headset microphone:
zPress and hold the headset's feature control switch.
To hang up:
zPress ( CANCEL ).
–OR–
Quickly press and release the headset's feature control switch.
To disable Headset Operation:
zPress the Headset feature key.