作为第五计算时代的发动机和生存模式，移动互联网已是大势所趋，传统电信运营商的语音、短信、彩铃增值服务等现金牛业务理论上来说都可以被新的技术替代。
As the fifth engine and subsistence patterns , mobile networking is an irresistible trend . The cash cow businesses such as Voice , SMS and Personal Ring Back Tone theoretically can be replaced by new technology .
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