Making A VoIP call - Connecting PSTN And VoIP

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Executive Summary

A 'gateway' makes the connection between the Internet and PSTN (Public Switched Telephone Network). Because gateways can be situated locally the costs associated with long-distance phone calls are minimized. In fact, the cost may be the same whether you are calling locally or across the globe. Gateways have been used for quite a number of years to provide low-cost long-distance calls. You may belong to a plan which offers tremendous savings over the long-distance rates of your local phone company. Companies which offer these low long-distance rates are using Internet telephony. Because their costs are so much lower, they can pass the savings on to the consumer. By making computer-to-telephone calls you are using the same technology as these long-distance phone companies.

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