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现在人们使用手机频率很高，经常更换手机或SIM卡，但手机的通话记录只能保存20个，如何将所有通话记录进行保存，特别对商务或重要人事的通话记录进行保存方便务查，这个工具可帮助你实现。-Now people use cell phones very high frequency, often to replace a mobile phone or SIM card, but the phone call records 20 can only be preserved, how to save all phone records, especially for important business or personnel records of the call to facilitate preservation of the Treasury investigation, this tools can help you realize.
