Noob Android question
I've recently taken the plunge and acquired an Android smart phone (FWIW it's an HTC Wildfire - a very early one called a G8 or A3333). It uses Android 2.2.1.
During the work day I need to have the phone on silent or at the very most, on vibrate. What I'd like to do is to be able to override the silent or vibrate behaviour for a few callers who have to be able to contact me immediately so for them only, I'd like to have the ringer on.
Is this possible on my phone? If not, then for interest's sake, is it a limitation of all Android versions, just mine or what?
In the event it cannot be done on my "new" HTC, can a Windows phone do this, or an iPhone or any other phone?