Getting mobile phone calls at work can mean one of two things: either the ringing bugs people around you (honestly, did you have to download the "Bolero" ringtone?) or the thing vibrates itself right off your desk and onto the floor, possibly in two or more pieces.
The less irritating, less hazardous and more stylish option is the $25 Signal Cell Phone Adviser, an opaque cup in which you can gracefully park your ringer-less phone. When you get a call, it (silently) lights up.