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一、引言自从手机这种新型通讯工具出现以后,它在人们的生活中扮演了极为重要的角色,尤其是在当今信息传播高速发达的社会中,它所体现的重要性尤为显著。为了使手机的价值链进一步增值,电信运营商们绞尽脑汁,而在近几年出现的手机短信和彩铃都称得上是运营商们不懈努力的成果。
I. INTRODUCTION Since the emergence of this new communication tool, the mobile phone has played an extremely important role in people’s lives. Especially in the rapidly-developing society where information is disseminated today, it is particularly significant. In order to further increase the value chain of mobile phones, telecom operators rack their brains, and in recent years the emergence of mobile messaging and ring tones are regarded as the result of unremitting efforts of operators.