“Extension” - is the extension of the telephone line (PBX) or the Centrex system. It works as an association and allows calling to certain telephone sets without the necessity of dialing the telephone number, but only by dialing a short combination of digits, reaching the desired subscriber.
Using an existing high-speed Internet connection, NationPhone technology enables anyone to make and receive phone calls - worldwide - with a touch-tone telephone from any country as if they were still at home. Offering quality phone service bundled with e
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