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Voicemail Presence Button

FS PBX includes a feature that lets users monitor team voicemails using a BLF key.

What the BLF shows​

  • LED ON: New voicemails

  • LED OFF: All voicemails have been checked

  • Press the button: Dials voicemail menu

Configuring the BLF Key​

On Yealink phones (and most SIP phones), add a BLF with:

Type: BLF
Value: vm$EXT
Label: Team VM

Replace $EXT with the voicmemail extension you want to monitor. Example - vm100 for voicemail extension 100.

This creates a SIP subscription to:

sip:vm100@yourdomain.com

FS PBX then sends real-time presence updates indicating whether there are new voicmeails left at this extension.

Backend FreeSWITCH Configuration Requirements​

You must enable the daemon in:

/etc/freeswitch/autoload_configs/lua.conf.xml

Add or un-comment:

<configuration name="lua.conf" description="LUA Configuration">
  <settings>

    <!-- YOUR EXISTING CONFIG -->

    <!-- FS PBX: Voicemail BLF daemon -->
    <param name="startup-script" value="lua/vm_blf.lua"/>
  </settings>
</configuration>

Important​

You must reboot FreeSWITCH to apply changes:

systemctl restart freeswitch