Gavin Hellier / Row of modern public telephones in modern train station, Berlin, Germany 2009

Bryan and Cherry Alexander / Nenets spectator using his mobile phone to photograph a reindeer race at a herders festival in the Yamal. Western Siberia, Russia, February 2009. Editorial use only.

Bryan and Cherry Alexander / Khanty woman using a mobile phone in Nadym. Yamal, Northwest Siberia, Russia, February 2007. Editorial use only.

Bryan and Cherry Alexander / Nenets woman using a mobile phone. Yamal, Northwest Siberia, Russia, February 2007. Editorial use only.

Bryan and Cherry Alexander / Chukchi woman using an Iridium Satellite phone at reindeer herders' winter camp. Chukotskiy Peninsula, Chukotka, Siberia, Russia, spring 2010

Bryan and Cherry Alexander / Inuit hunter using Iridium satellite telephone on the Melville Peninsula, Nunavut, Canada, 1999.

Bryan and Cherry Alexander / Inuit hunter using Iridium satellite telephone on the Melville Peninsula, Nunavut, Canada, 1999.

David Woodfall / Woman standing in doorway using mobile phone at her home in industrial slum, Bhopal, Madhya Pradesh, India, November 2008

Juan Carlos Munoz / Telephone kiosk in shape of Macaw, Parque Nacional Chapada dos Guimarães, Mato Grosso, Brazil

Juan Carlos Munoz / Telephone kiosk in shape of Jaguar, Parque Nacional Chapada dos Guimarães, Mato Grosso, Brazil

Juan Carlos Munoz / Telephone kiosk in shape of Jaguar, Parque Nacional Chapada dos Guimarães, Mato Grosso, Brazil

George Chan / Mongolian man checking his mobile phone at the annual Nadam Festival, Inner Mongolia. June 2006

George Chan / Mongolian man checking his mobile phone at the annual Nadam Festival, Inner Mongolia. June 2006