London Calling On The Cheap

INTERNATIONAL DISCOUNT Telecommunications made its name several years back with a clever "callback" scheme that lets people in foreign countries take advantage of the U.S.'s relatively low tariffs on international telephone calls. Customers dial briefly into IDT's switch in Hackensack, N.J., and it automatically calls back and connects them to any number they choose--U.S. or foreign. More recently, using audio-equipped PCs and voice-digitizing software from companies such as VocalTec and Camelot, users have begun making extremely cheap--if low-quality--calls over the global Internet.

To continue reading this article you must be a Bloomberg Professional Service Subscriber.