Mitel 4125 User's Guide download pdf (Page 8)

To Install a Headset with Feature Control Switch

IMPORTANT NOTE: MITEL’s Headset with Feature Control Switch (PN 9132-

800-500-NA) must be installed in the dedicated headset jack (the jack

nearest the front of the set). Installation will disable your handset

microphone. Disconnecting the headset at the jack or at the quick-

disconnect plug restores handset operation.

To install the headset for your use, perform the following tasks:

1. When the telephone is not in use, lift the handset from the cradle and

carefully turn the set upside down.

2. Plug the headset cord into the headset jack (the jack nearest the front

of the set).

3. Set the telephone upright and return the handset to the cradle.

To return to handset operation, perform the following tasks:

1. When the telephone is not in use, lift the handset from the cradle and

carefully turn the set upside down.

2. Unplug the headset cord where it connects to the telephone.

3. Set the telephone upright and return the handset to the cradle.

4. Store your headset in a safe place

Enabling/Disabling Headset Operation:

To enable or disable headset operation for headsets on telephones that are not

programmed for full-time headset operation:

• Press the HEADSET feature key.

• Connect or disconnect the headset at the quick-disconnect plug

(Headset with Feature Control Switch only).

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Mitel 4125 User's Guide Page 8