Site of the first telephone switch in Shanghai in 1882.

The interconnecting lines provide some protection by avoiding local telephone switches.

It's like Lucent making an investment in a telephone switch.

Dynamic load control is a form of back busying to the telephone switch.

Second, the country's telephone switches must be opened up to competitors for fair access.

Then he flicked his telephone switch and called Wanda at the office downtown.

There is great interest in Newark from telecommunications companies who want to be close to the main telephone switches.

Because it's so easy, many people don't realize that telephone switches are really taxable sales.

A few years later, he arrived at a mathematical approach to assist in designing telephone switches.

For example, individuals who attack telephone switches may disrupt interstate and foreign calls.