VoIPSwitch

A Voipswitch or softswitch is a very important device element of any telecommunications network. It connects different IP networks in order to deliver end-to-end communications

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Calling Cards versus Call Shops

A decade ago, call shops were the most convenient way for tourists and immigrants to contact their families. Today however, this has changed, the number of ways getting in touch with their families abroad has increased with the Internet, and currently it is threatening to the survival of the call shops.

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