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　　Registered users get max 200 minutes per week of free calls, measured over the last 7 days and per unique IP address. Unused free minutes cannot be taken to the following week(s). If limit is exceeded the normal rates apply. During your Freedays you can call all destinations listed as "Free" for free. When you have run out of Freedays, the normal rates apply. You can get extra Freedays by buying credit.

看到了官方的说明吧,每周有200分钟哦,还不快来试试
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