第三方呼叫为开发人员提供的最后一个操作是取消呼叫的能力，通过cancelCall(CallIdentifier)函数进行。

The last operation that Third Party Call gives a developer is the ability to cancel a call, using a cancelCall(CallIdentifier) function.

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假定您希望结束 Agent1和 Agent2间的SIP呼叫会话，则可以对第三方呼叫Web服务发出endCall(CallIdentifier)函数调用。

Suppose you wish to end the SIP call session between Agent 1 and Agent 2; you can issue an endCall(CallIdentifier) function call on the Third Party Call Web service.

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复制构造函数是因为你呼叫的价值不是由参考。

The copy constructor is called because you call by value not by reference.

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复制构造函数是因为你呼叫的价值不是由参考。

The copy constructor is called because you call by value not by reference.

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