Polycom TransTalk 9000-Series - Manual (Page 301)

Message Light Off (F10XX)
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5. Optionally, dial the two-digit extension number of your most common
destination, or skip to Step 6 if you want only the feature code on the
button.
6. Program another button for this extension or exit programming mode.
Using
System Phone
To turn off the message light:
1. Press the programmed button or press f 1 0 .
If you programmed the destination extension number on the button, the
message light for the destination extension goes off. Skip Step 2.
2. If no extension number was programmed on the button, dial the extension
number of the phone whose message light you want to turn off, or use an
Auto Dial button or Manual Signaling button.
Standard Phone
To turn off the message light:
1. Lift the handset.
You hear intercom dial tone.
2. Press # 1 0 .
3. Dial the extension number of the phone whose message light you want to
turn off.