Blank/Empty Voicemails

Lately I’ve been getting blank voicemails, lasting about 4:43. Its just a completely empty voicemail without any sound at all. Any idea how to cut it off, so it doesn’t record silence?

Asterisk Version: Asterisk (Ver. 11.4.0)
PBX Firmware: 4.211.64-5
PBX Service Pack:


Ref maxsilence in:-

So far so good. That looks like it fixed my problem. Thanks!

Preferably, make sure your “far end disconnect detection” is working properly, if that is not possible, you can tune


and perhaps


as appropriate also.

(and of course the good old silencedetect, otherwise you will remail offhook for the duration of those voicemails)