FOR: *Yealink Prime Business Phone Model:SIP-T53W*. Unsure if this fits other similar models.
Simply decorate your boring office phone or turn it into a multi-purpose tool. Keep business cards or post it notes on the shelf and always have a pen nearby. Approx size of the bezel is 136mm across and 88 high with a 5mm corner radius with a tiny lip added along the front edge to keep it snug. I made the shelf a bit shorter than a typical post it note as a full stack didn't seem to stick in place anyway and it seemed the best option would be to wedge the stack over the shelf edge to keep it up there. There is also a ledge at the front to keep anything from sliding off. There will be some basic supports between the ledge and shelf but they remove fine. The space between the two is about 52 mm so you can also just make and slide in your favourite dorky 2D print as decoration as well. You can also play around with top layer patterns and I have added height range modifiers so you can change the shelf or bezel separately.
There are 3 options in the print profile.