Can convert a stereo headset to a telephone...

Question

I have a Cyber Acoustic AC-401 stereo headset. It encloses both ears with this awesome velvety padding and is noise canceling. I love it. It was also very cheap to boot ($14.99). A similar headset for my telephone (needed for my telecommute job) runs around $299.99. Ouch! Is it possible to convert this stereo headset into a telephone headset? It has voice and audio cables (green and pink).