Yealink Extension Monitoring (BLF)

Monitor Voicemail Mailbox or Extension

This requires a fairly recent FreePBX Distro installation which provides the necessary hints.

nnn is the extension number in the following.

Some phones (like T22P) are incapable of displaying a label, so that field is grayed out in the web UI.

Web Interface → DSS Key → Line Key

Type	Value	Label	Line	Extension
BLF	*98nnn	nnn VM	Line1

<asterisk><asterisk> is the pickup code so you can pick up the monitored extension when it's ringing.

Type	Value	Label	Line	Extension
BLF	nnn	nnn VM	Line1	**