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| The Mobile World Congress(MWC), held in the Mediterranean city of Barcelona on Feb.24-27, had an economic impact of 397 million euros(539 million U.S.dollars), the CEO of the GSMA, John Hoffman, said on Thursday. |
| China Mobile, the world's largest mobile phone operator, has introduced an integrated communications service at the annual Mobile World Congress in Barcelona this month, which is being seen as an effort to fight against over-the-top services, such as instant messaging app WeChat.
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