I dialed her direct line and fortunately, I got a hold of her on the first try.

我拨通了她的直拨电话， 幸运的是，我在第一次尝试时就联系上了她。

There are dial lines on the bottom of the screen.

屏幕底部有热线电话号码。

He says he dials her " direct line" and fortunately he got hold of her on the first try.

他说他拨通了她的“直线”，幸运的是他在第一次尝试时就抓住了她。