In this background, the design programs of online charging system based on OCS were proposed by China Telecom, and in 2009, the official cutover test was ran by Shandong Telecom.
在这样的大背景下，中国电信提出了基于OCS的在线融合计费系统的设计方案，并于2009年在山东电信正式割接试运行。
In this background, the design programs of online charging system based on OCS were proposed by China Telecom, and in 2009, the official cutover test was ran by Shandong Telecom.
在这样的大背景下，中国电信提出了基于OCS的在线融合计费系统的设计方案，并于2009年在山东电信正式割接试运行。
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