Have we ever realized how much will be benefited by VoIP technology? Personally I am very thankful to VoIP, as I am (staying in US) far from my parents and in-laws, but I can talk to them in India for about half an hour or more (depends on them and me), without costing so much. Simply we need computer, sound card, speakers and microphone.
What is VoIP anyway? If you are new to VoIP and want to get basic understanding of how it works, how will you get benefited by VoIP solution as a customer then this article is for you.
Let's get started. VoIP is a technology that allows us to make phone calls over a broadband Internet connection as opposed to traditional analog phone lines. In simple terms it makes our computer or laptop as telephone.
How does VoIP work? Before going to basics of VoIP technology, lets take a look on how our 100-year-old traditional telephone system works.
Traditional telephone system works on circuit switching, means when a call is made a connection is set up between source and destination, in both directions, and it is maintained till duration of call. This is a dual directional i.e. we are connecting two ports in both directions, so it will make a circuit.
There is one drawback in this system, i.e. the telephone line cannot distinguish between useful talking and silence. Like if conversation is going on between two persons then one will be talking and other will be silent, so half of the transmission data is wasted in this case. Apart from this, there are many instances when there is pause between conversation that silence is also treated as data and its transmission is a waste. So if we can handle these two issues that is if we can transmit only useful data and remove unwanted instances then we can cut data transmission by more then half.
VoIP technology took care of this drawback, so it uses packet switching, in this case it opens connection just long enough to send bits of useful data called packet from one system to another. This scenario is same as your computer is making connection to any website, as and when it is required, otherwise internet connection will be very slow, if it will constantly maintain connection with any web page.
This type of system allows the network to send our call (in packet) along the least congested and cheapest line available, we can say that about 3 to 4 calls from a VoIP system could fit in the space of our call from a circuit switch system. This is the basic reason why VoIP is cheaper then conventional calling plans.
There are different types of VoIP calling some of them are mentioned below.
Other than saving money there are more benefits from using VoIP system. What all benefits you get depend on provider also, some of the benefits are listed below.
There are many providers in the market with their own strength. As the technology is growing fast and incredible amount of work is dedicated to VoIP, some of the disadvantages that are associated with VoIP are going to resolve within next few years, it is expected that after some time VoIP will have widespread consumer acceptance.
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More Articles by Ruchi Gupta © 2011-03-18 Ruchi Gupta