在HelpDesk应用程序中，您可以在列表组件中查看特定员工的通话记录，而信息组件可以列出所显示通话的平均通话时间。
In a Help Desk application, you can view the call logs of a particular employee in the list component, and an information component can list the average call time for the displayed calls.
通话部分显示的整个历史，联系电话分组和通话时间排序。
The calls section shows the entire calls history grouped by contact and sorted by call time.
一家交易公司CTIA的调查显示，移动电话的平均通话时间自2007年年中开始，就从略超过3分钟下降到1分40秒。
A survey by CTIA, a trade group, shows that the average length of a mobile call has dropped from just over three minutes to one minute and 40 seconds since mid-2007.
要求每个联系人的历史也显示呼叫状态，时间和通话时间。
Call history for each contact also shows the call status, time and duration of the call.
要求每个联系人的历史也显示呼叫状态，时间和通话时间。
Call history for each contact also shows the call status, time and duration of the call.
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