24/90V MESSAGE WAITING LAMP
If your phone is installed behind a Message Waiting enabled PBX, you will need to set
the MW switch in order to receive the Message Waiting indication.
1. Remove the directory cover by moving the holding clip up, and pulling the clear
cover up.
2. Once the directory cover is removed, locate the switch below the holding clip.
3. For 90V PBX Message Waiting Indication, move the switch to the position
marked “90V”. For 24V PBX Message Waiting Indication, move the switch to the
position marked “24V”. If connecting directly to telephone lines, move the switch
to the center “OFF” position.
4. Replace and secure the directory cover by placing the directory cover on and
moving the holding clip down.
Warning: Setting this switch in a position other than OFF can cause this
phone to function incorrectly. When enabled, this feature is for PBX
systems, and not meant for direct Central Office (CO) interface. If
connecting to CO telephone lines, make sure this switch is set to OFF.
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