在计算机网络术语中,ISDN的中文含义是()。
ISDN的用户网络接口协议中,LAP-D是()
ISDN利用电话线路向用户提供数据传输服务,目前已得到广泛应用。
I.430、Q.921、Q.931都是ITU-T制订的ISDN业务规范。
Which statements are true regarding ISDN channels?()
In the context of configuring dial-on-demand routing using ISDN, what is the purpose of the dialer-list command?()
You purchase a USB board, ISDN terminal adapter for your Windows 2000 Professional portable computer. You plug the device in to the USB port. Plug and Play fails to detect the new device. You test the device on a Windows 2000 Professional desktop computer. You find that plug and play correctly detects the device. You want to resolve the problem so that you can use ISDN terminal adapter on your portable computer. What should you do?()
B-ISDN中不论是交换节点之间的中继线,还是用户和交换机之间的用户环路,一律采用光纤传输。
工作区子系统中所使用连接器必须具备有国际ISDN标准的()位接口。
ITU-T为ISDN协议设计了一个立体的结构模型,其中有哪几个平面?