MWI (Message Waiting Indicator) on Asterisk 1.6

To make the message waiting indicator work (on a Yealink phone, or maybe any phone) with Asterisk 1.6 and FreePBX 2.7 you need to modify the voicemail.conf in /etc/asterisk to:

pollmailboxes=yes
pollfreq=5

Cheers
Daniel

via: http://danielaliaman.com/blog/

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