You are likely to encounter three main types of digital telephone systems in the world of business today. A fixed digital telephone system is connected to the main telephone network via cables.

For the first 100 years of the telephone business, all telephone circuits were analog. They were designed around the characteristics and problems of analog current and were maximized for that use.

What goes on behind the scenes when you make a call? That's something you don't think about until you're faced with setting up a phone system for a multi-user environment. Connecting the outside world ...

In the beginning there were smoke signals, then the telegraph, telephone, fax, e-mail, texting and live chat that have all been part of the telephony world. Now, VDO-PH International's proprietary ...

Wiretapping used to be so easy. All a cop needed was a court order, a little wire, a few simple tools and a headset. With those in hand, it was a simple matter to go down to the telephone company ...

Last year, members of Congress ineffectually complained about the trivial wrist-slap "discipline" of CIA administrators responsible for permitting the Ames spy debacle. The IRS told Congress it ...

I always chuckle when I tell someone that I’m talking to them over a cellular telephone. Invariably, the person on the other end thinks that I’m lying. You can’t be on a cell phone, the caller will ...