i wonder how phone card work. we call the no. from the card and enter pin no. provided and then we can call to any other countries in the world. Do you know how the whole process work. how do they make it work.
How do the oversea calling card work. Can you tell me their whole process in technology and in business?
its a business like any other....you have so many companies out there, all just trying to get you to sign up and collect your money...then you have all those jerks here on yahoo answer selling there dumb calling cards, which is spam and against the yahoo rules.
Reply:The process is IP-telephony. It is possible to exchange digital information with the Internet. The most known example is an e-mail. However, it is technically possible to digitize and send a sound as well. And in this sense IP-telephony systems use the Internet for sending fax or voice between two users of computer in real time. For details visit International Phone Card Review
Reply:I have no clue! I dial direct.
Try looking it up on http://www.HowStuffWorks.com
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