In contrast to Apple's iOS and Google's Android systems, Windows platform can operate seamlessly across phones, tablets, laptops, desktop computers and televisions, Microsoft said.
Lu Yimin, general manager of China Unicom, said Windows Phone devices give users a large variety of choices. He said China Unicom, which has more than 70 million subscribers to its third-generation, or 3G, network, will help promote more products using the Windows system.
Microsoft will put more resources into technical support, schedule more regular training sessions and place a greater emphasis on marketing promotions, Turner said.
Seven cell phone manufacturers, including Nokia Corp, HTC Corp and Samsung Group, and the chipset makers Qualcomm Inc and Intel Corp, will be among the first members of the alliance.
Stephen Elop, chief executive officer of Nokia, said China has already become the world's largest market for Windows Phone devices. China is also the biggest single-country market for Nokia's Lumia smartphone series, Elop said during a Guangzhou conference this week, without releasing specific figures.
Microsoft officially introduced its Windows Phone 8 mobile operating system to China on Thursday. Before that, HTC had released two Windows Phone 8 devices that run on China Unicom's 3G network.
"As more mobile phone vendors start selling Windows Phone devices, it demonstrated that Nokia made a very bright choice at the very beginning," said Gustavo Eichelmann, Nokia China chief. Nokia has been using the Windows Phone operating system since 2010.
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