INTERNATIONAL PHONE CARDS

 How does VOIP work?
A way is required to turn analog phone signals into digital signals that can be sent over the Internet.
This function can either be included into the phone itself  or in a separate box like an ATA .
What Are Prepaid Phone Cards?

Prepaid phone cards are cards that you purchase in order to call overseas. You are guaranteed a low rate whenever you decide to use the card. Since you have already paid the balance for the card, your phone calls cost you no new money past the purchase price. more about phone cads

 

 How Calling Cards Got Started In The United States? Do you often wonder how the idea of calling cards was even invented? Was there a fabulous story behind the beginnings of these now highly used cards? Most of us don’t stop to think about the beginnings of products that we use on a constant basis. But it is nice to look closer at the evolution of the calling card and understand the roots behind its invention. It all started in 1975 with a basic idea to offer people a way to pay for calls when they did not have the funds. more about calling cards
 
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