请论述公专IP可视电话双归属功能。

题目标签：电话可视电话功能

相关题库：广州地铁十八、二十二号线通信技能鉴定题库

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参考解析：

刷刷题刷刷变学霸

举一反三

【多选题】可视电话的回落产生的原因主要有（）

网络不支持

被叫终端不支持

被叫用户未签约

被叫用户不愿以视频方式通话

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【判断题】可视电话需要主被叫双方终端具有视频功能，是音频和视频的同步通信。

正确

错误

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【单选题】在IPTV系统中，可视电话属于（）层

家庭网络层

承载网络层

服务网络层

运营管理层

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【单选题】有如下事件过程：Private Sub Form_Load() Show Dim Arr() As Variant Arr = Array(1, 3, 5, 7, 9, 11, 13, 15) Call converse(Arr) For i = 0 To 7 Print arr(i); Next iEnd Sub 以上程序的功能是，通过调用Converse过程，将数组Arr中的元素逆序存放并输出...

Private Sub converse(dim a() as Variant ) Dim T For i = LBound(A) To UBound(A) T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub

Private Sub converse(dim a() as Variant) Dim T Dim J As Integer J = (LBound(A) + UBound(A)) / 2 For i = LBound(A) To J T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub

Private Sub converse(a() As Variant) Dim T For i = LBound(A) To UBound(A) T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub

Private Sub converse(a() As Variant) Dim T Dim J As Integer J = Int((LBound(A) + UBound(A)) / 2) For i = LBound(A) To J T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub

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