ISDN is a typical circuit switched network system.

综合业务数字网是一种典型的电路交换网络系统。

ISDN is commonly used on a broadband network.

综合业务数字网通常被应用在一个宽带的网络中。

ISDN is an international standard for digital telephone networks.

综合业务数字网是一个数字电话网络国际标准。

ISDN connectivity allows computers to communicate over a network.

综合业务数字网连接实现了计算机网络通讯。

And motorcycles always remind me of ISDN!

摩托车总是让我想起ISDN。

But for many users, ISDN has saved the day.

但对很多用户来说，isdn节省了时间。

Not enough ISDN channels are available to make the call.

半速动行的ISDN通道对电话呼叫来说是有效的。

Like ISDN, ADSL will use normal qualified copper phone lines.

和ISDN一样，ADSL使用普通合格的铜电话线。