主要的问题是：当通话时，主叫和被叫都感受到明显的时延；另外还有一些回音现象。
Theonly issue was that both the other caller and I experienced significant delaybetween when we spoke, and when the other caller heard what we said.
该业务的通话费由主、被叫分摊付费。
The business calls by the master, apportion be callinged pays.
基本功能：可查询本次通话开始时间，通知时间长、通话费用及被叫号码等。
Basic functions: to check the start time of this call to inform a long time, call costs and the called Numbers.
基本功能：可查询本次通话开始时间，通知时间长、通话费用及被叫号码等。
Basic functions: to check the start time of this call to inform a long time, call costs and the called Numbers.
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