![Jean-Yves Charlier (R), chairman and chief executive of French mobile operator SFR, and Olivier Roussat (L), Chairman and CEO of Bouygues Telecom, arrive at a news conference in Paris, February 3, 2014. Jean-Yves Charlier (R), chairman and chief executive of French mobile operator SFR, and Olivier Roussat (L), Chairman and CEO of Bouygues Telecom, arrive at a news conference in Paris, February 3, 2014.](https://c8.alamy.com/comp/2E61HCX/jean-yves-charlier-r-chairman-and-chief-executive-of-french-mobile-operator-sfr-and-olivier-roussat-l-chairman-and-ceo-of-bouygues-telecom-arrive-at-a-news-conference-in-paris-february-3-2014-french-network-operators-bouygues-telecom-and-sfr-agreed-on-friday-to-share-part-of-their-mobile-networks-to-improve-client-coverage-and-save-costs-reuterscharles-platiau-france-tags-politics-business-2E61HCX.jpg)
Jean-Yves Charlier (R), chairman and chief executive of French mobile operator SFR, and Olivier Roussat (L), Chairman and CEO of Bouygues Telecom, arrive at a news conference in Paris, February 3, 2014.
![VimpelCom on Twitter: "#VimpelCom CEO Jean-Yves Charlier on driving change for the company https://t.co/paqT7qKeFt https://t.co/QfXudjJP14" / Twitter VimpelCom on Twitter: "#VimpelCom CEO Jean-Yves Charlier on driving change for the company https://t.co/paqT7qKeFt https://t.co/QfXudjJP14" / Twitter](https://pbs.twimg.com/media/Cbkj3SZUcAIqlOh.jpg)
VimpelCom on Twitter: "#VimpelCom CEO Jean-Yves Charlier on driving change for the company https://t.co/paqT7qKeFt https://t.co/QfXudjJP14" / Twitter
![Jean-Yves Charlier (R), chairman and chief executive of French mobile operator SFR, and Olivier Roussat (L), Chairman and CEO of Bouygues Telecom, arrive at a news conference in Paris, February 3, 2014. Jean-Yves Charlier (R), chairman and chief executive of French mobile operator SFR, and Olivier Roussat (L), Chairman and CEO of Bouygues Telecom, arrive at a news conference in Paris, February 3, 2014.](https://c8.alamy.com/comp/2CY6A62/jean-yves-charlier-r-chairman-and-chief-executive-of-french-mobile-operator-sfr-and-olivier-roussat-l-chairman-and-ceo-of-bouygues-telecom-arrive-at-a-news-conference-in-paris-february-3-2014-french-network-operators-bouygues-telecom-and-sfr-agreed-on-friday-to-share-part-of-their-mobile-networks-to-improve-client-coverage-and-save-costs-reuterscharles-platiau-france-tags-politics-business-2CY6A62.jpg)