Vibrate-only mode for google voice I'd like to keep my mobile number private &amp; give out the Google voice number for business. 

Is it possible to see the caller number for a google voice call, but set it so that it is in silent mode? 

I don't want to silence the phone if the call is to my private number. This is to ensure that I do not miss a call if my private number is dialed (it is an emergency number due to medical reasons). But since I am in a lot of meetings etc, I want to keep it on silent for all other calls. I hope this makes sense.

I have looked around online, but cannot figure out a way to do this. Any help would be greatly appreciated!
Unfortunately, this is not possible with setting Google Voice to forward the caller number to your phone.

When someone calls you using your Google Voice number and you set it up to go straight to your phone, the system spoofs the caller's number and sends it to your phone; the VoIP part of the call ends when Voice connects your caller to you, it's your basic forwarding service.

You cannot control any part of that with the settings from either the webapp or the Andorid app.

EDIT: There's a potential solution to this, depending on whether your emergency contacts have fixed numbers or not. You can set your default ringtone to "None", but for those contacts who do have your number, assign an actual ringtone to them and keep your phone's ringer on loud. Of course, this would not include emergency calls from numbers that you would not know, like hospitals or police stations.