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In version 2.11 and above, your FreePBX Distro, PBXact, and Sangoma PBX GUI software allows the creation of busy lamp field (BLF) hints for voicemail boxes. You can then program a BLF on your phone to light up when there is a voicemail message waiting.

Since this feature is not enabled by default, you will need to visit the Advanced Settings module to enable it.

  • Go to Settings → Advanced Settings
  • Find the Voicemail Module section at the bottom of the page.
  • Click the Yes button for Create Voicemail Hints.
  • Click the Submit button
  • Click the Apply Config button. A hint for each voicemail box will now be auto-created.


If you log into the Asterisk CLI and issue the command core show hints, you will see the hint for each voicemail box.

localhost*CLI> core show hints
       -= Registered Asterisk Dial Plan Hints =-
                    *[email protected]                     : MWI:[email protected]                State:Idle              Watchers 0

In our example above, voicemail box 101 has a hint that you can program to a BLF button as *98101. Note that if the default feature code for Dial Voicemail has been changed from *98, the voicemail hints will use the feature code prefix as set in Admin → Feature Codes.

Now any time voicemail box 101 has one or more new messages waiting, the phone's BLF light will turn on.

Pressing the BLF button will prompt you to log in with the password for voicemail box 101.

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