Very cool, nostalgic photo. I wonder though if it's immediately recognizable as a telephone. I think having the handset a little more pronounced could have improved the shot. The use of a high ISO or added grain in post-processing is flawless--I love it. The lighting is fairly good, with a little too much light on the right and not enough on the left. But not really bad. I give it an 8. Great stuff.
The idea is good, but I feel that the general condition of the dial and the low lighting, gives a very grainy and dark feel which does not give this image justice