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In the coming years, Voice Over Internet Protocol (VoIP) is going to dominate the communication world with its technological advantages. In fact, many communication companies have started using VoIP technology for their long distance calls. You may have used this service unknowingly since many companies use VoIP to route long distance calls through a circuit switch into an IP phone, and another IP phone at the other end receives calls for another local circuit switch. For a novice it is must to know what VoIP is and how it works. A device converts large amount of analogue signals to be compressed and transmitted, then uncompressed and delivered into digital data.
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