The telephone technology, the condition of the offices, supervision and morale were suffering.

We live in an age when telephone technologies have transformed relations between companies and their customers - generally for the better.

We'll look at the different telephone technologies that enable us to easily communicate.

Experts say the new telephone technology may have the unforeseen consequence of making the nation's phone system increasingly vulnerable.

The cable industry has increasingly viewed the portable telephone technology as a logical extension of its business.

No one knows for sure exactly how many days are ruined courtesy of the latest telephone technology.

Today, most phreaking boxes are obsolete due to changes in telephone technology.

The Chicago incident illustrates a hidden consequence of new telephone technology, some experts say.

Blake's 1877 microphone was critical to Bell's telephone technology.

Car engines have not changed for a hundred years, while mobile telephone technology changes every month.