User guide

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Use your Options Key (M3902, M3903, M3904)
Use Headset port on call (M3904)
This feature allows you to connect a third party device such as a light to indicate
to others that you are on a call. The third party device connects to the headset port
and is activated when the user is on a call. Select the Headset port call option to
change the headset port.
Note: This feature is reserved for future qualification with third party equipment.
or
1. Press the On Key to turn on the
Headset port on call.
or
Press the Off Key to turn off the
Headset port on call.
2. Press the Done Key to save the
changes and exit.
Use Headset External Alerter and Recorder Interface (M3903 and
M3904)
When activated, the Headset External Alerter and Recorder Interface option,
provides an interface for the installation of a visual or audible alerter and or
recorder device. The External Alerter or Recording device plugs into the Headset
port located on the underneath side of the telephone. Select Headset External
Alerter option and follow these steps:
Note: This feature is reserved for future qualification with third party equipment.
or
1. Press the On Key to turn on
Headset port.
or
Press the Off Key to turn off the
Headset port.
2. Press the Done Key to save the
changes and exit.
On
Off
Done
On
Off
Done