Over the years, the numbering system received several technological face lifts, notably the transition to computerized digital switching that began in the 1980's.

These amplifiers utilized digital switching, an effective method for increasing power from your vehicle's electrical system.

It wasn't until the telcos went completely digital switching did they separate the control and the user layers.

The concepts of digital switching were developed by various labs in the United States and in Europe from the 1930s onwards.

Woodbury Telephone already has fiber optic cable, digital switching, Internet access and many other services.

As the industry was deregulated over the last decade and a half, companies made many changes, like the conversion from analog to digital switching.

As described above, most automated telephone exchanges now use digital switching rather than mechanical or analog switching.

Arrays are commonly used in digital switching.

AT&T was intending to delay the introduction of digital switching until the 1990s.

Mr. Collins helped develop advanced data communications and control concepts, techniques used in digital switching for telecommunications.