I’ve installed to the rear of the center pedistal the correct telephone and microphone that complies with the B737-300 series. Neither item is necessary, but it adds to aesthetics and fills the empty gap where the phone should have been installed. Although the phone and mike are functional, they are not connected to flight simulator.
When I purchased the center pedistal it didn’t have the communications equipment and I didn’t believe it would be possible to find the correct items. Finding the telephone and microphone was relatively easy; however, the telephone required a special cradle which I could not find.
As you can see from the image, this telephone has been there and done that! It's a little scratched, but I prefer using a real B737 part with a little wear and tear, than a shinny new reproduction telephone and microphone.
It was a pleasant surprise to learn that a friend from Florida had a spare cradle (thanks Art).