The modification of everyday objects nel'arte reconsidering their use canon allows you to recode their role, now taken for granted by changing their characteristics to the purpose not so overtly functional. O Telephone is an installation that makes use of the American Don Ritter 6 phones changed places on as many tables in a darkened room. In particular, for old phones, ie those with the rotary dial for almost fifty years that have populated the houses, it was replaced the same disk with a small woofer. Stations ring, each with its own ring tone in random sequence, and when you lift the handset emit an 'om' from the microphone and the woofer itself. If the receiver is lifted while the phone does not ring, you hear a signal of 'free', but if all six receivers are raised, 30 different voices emit a 'om' contemporary that fills the room with sound. Besides the size of the public / private receiver and amplifier, distraught, as always made public, and the response, which is unique and which invites to reflection rather than the compulsive communication, usable in the video streaming you can also appreciate the ability to issue sound, free from tiny handset placed at the ear and amplified in his chorus of voices in a much larger space.