telephone是可数名词吗

　　例句：

　　The new system interfaces with existing telephone equipment.

　　新系统与现有的`电话设备相连接。

　　You can telephone your order 24 hours a day.

　　一天24小时你都可以打电话订购。

　　That telephone call set in train a whole series of events.

　　那个电话把一整套事项安排好了。

　　I need to make a telephone call.

　　我得打个电话。

　　Our telephone lines are open during normal office hours.

　　我们的电话在正常办公时间一直开通。