We had a thread here on this last summer.

I have two 650s - one with Goodlink, one without. Neither will vibrate for a new voicemail alert when in Silent mode. Yes I have checked all settings - it is set to vibrate on when the sound is off.

If the sound is on, new vmail causes a sound and a vibrate (I have it set that way). Vibrate works fine in SLient mode for all other events like a new call or a new sms, etc.

DId anyone ever resolve this? Or did you all go get Butler or somethng? Seems unreasonable that it does not work and having to install a 3rd party app for something like this bugs me.