VoIP 101: Voice over IP for Beginners

For those who have never heard about the potential of VoIP, be prepared to radically change the way you think about your current long-distance calling plan. VoIP (Voice over Internet Protocol) is very simply, a method for taking ordinary analog audio signals and turning them into digital signals that can be sent over the Internet.

So what? Well, for those of you who are already paying a monthly fee for an Internet connection, this means that you can use that same connection to place free long distance phone calls. This process works by using already available VoIP software to make phone calls over the Internet, essentially circumventing phone companies and their service charges.

Interestingly, VoIP is not an entirely new thing. In fact, a number of providing companies have been around for some time. But it has only been with the more recent explosion of high-speed internet access usage, that VoIP has gotten any attention. Now the major telephone carriers are setting up their own VoIP calling plans throughout the US, another testament to the potential of the technology.

How VoIP Is Used

While there are a number of ways that VoIP is currently being used, most individual callers fall into one of three categories: ATA, IP Phones, and Computer-to-Computer.

ATA or Analog Telephone Adaptor, is the most common way of using VoIP. This adaptor actually allows you to hook up the phone that is already in your house, to your computer, and then your Internet connection. What the ATA does, is turn the analog signals your phone sends out into digital signals that can be sent over the Internet. Setting up this system is quite simple. It simply requires that you order an ATA (its an adaptor remember), plug the cable from your phone which would normally go into the wall socket into the ATA, and then the ATA gets plugged into your computer, which is connected to the internet. Some ATAs include software that has to be installed on your computer before its ready, but basically it's quite a simple process. Then you are ready to make some calls.

The next type of VoIP usage utilizes IP Phones instead of your home phone. The IP Phone looks just like a normal phone, with all the same buttons and cradle, the only difference is that instead of having a normal wall jack connector, it has an Ethernet connector. This means, that instead of plugging in your IP phone to the wall jack like you would with a regular analog phone, it gets plugged directly into your router.

This option allows you to circumvent your personal computer, and it also means that you will not have to install any software, because its all built in to the handset. In addition, the fact that Wi-Fi IP phones will soon be available, which will allow subscribing callers to make VoIP calls from any Wi-Fi hot spot, make this option an exciting possibility.

The simplest and cheapest way to use VoIP is through computer-to-computer calls. These calls are entirely free, meaning no calling plan whatsoever. The only thing you need, is the software which can be found for free on the internet, a good internet connection, a microphone, speakers, and a sound card. Except for your monthly internet service fee, there is literally no cost for making these calls, no matter how many you make.

For large companies, VoIP also offers some very unique possibilities. Some larger companies are already utilizing the technology by conducting all intra-office calls through a VoIP network. Because the quality of sound is comparable to and in some cases surpasses that of analog service, some international companies are using VoIP to route international calls through the branch of their company nearest the call's destination and then completing it on an analog system. This allows them to pay local rates internationally and still utilize the same intra-office VoIP network that they would if they were calling someone in the next cubicle over.

Other Advantages of VoIP

While your current long-distance plan covers you for only one location, say calls made from your office, with VoIP, you can make a call anywhere that you can get a broadband connection. That is because all three methods above, unlike analog calls, send the call information via the Internet. This means you can make calls from home, on vacation, on business trips, and almost anywhere else. Anywhere you go, with VoIP you can bring your home phone along with you. In the same way, computer-to-computer connections mean that as long as you have your laptop and a connection, you're ready to go.

There are also some nifty benefits to having your calls transmitted over the Internet. For example, some VoIP service providers allow you to check your voicemail via your e-mail, while others allow you to attach voice messages to your e-mails.

How VoIP Works

The current phone system relies on a reliable but largely inefficient method for connecting calls known as circuit switching. This technique, which has been used for over 100 years, means that when a call is made between two people a connection is maintained in both directions between callers for the duration of the call. This dual directional characteristic gives the system the name circuit.

If, for example, you made a 30-minute call the circuit would be continuously open, and thus used, between the two phones. Up until about 1960, this meant that every call had to have an actual dedicated wire connecting the two phones. Thus a long distance call cost so much, because you were paying for pieces of copper wire to be connected all the way from your phone to the destination phone, and for that connection to remain constant throughout the call.

Today, however, your analog call is converted after leaving your house to a digital signal, where your call can be combined with many others on a single fiber optic cable. While this system is certainly an improvement over the past copper wire system, it is still quite inefficient. This inefficiency is due in part to the fact that the telephone line can't distinguish between useful talking and unneeded silences. For example, in a typical conversation while one person is talking the other person is listening.

Thus the current analog system uses roughly half its space sending useless messages like this silence. But there is also more information, even down to pauses in speech, which under a more efficient system can be effectively cut out rather than wasting the circuit space. This idea of only transmitting the noisy bits of a telephone call and saving a great deal on circuit space, is the basis of Packet-Switching, the alternative method to circuit switching that the VoIP phone system uses.

Packet-Switching is the same method that you use when you view a website. For example, as you read this website, your computer is not maintaining a constant connection to the site, but rather making connections to send and receive information only on an as needed basis (such as when you click on a link). Just as this system allows the transfer of information over the Internet to work so quickly, so also does it work in the VoIP system. While circuit switching maintains a constant and open connection, packet switching opens connections just long enough to send bits of data called packets from one computer to another.

This allows the network to send your call (in packets) along the least congested and cheapest lines available, while also keeping your computer or IP phone, free to send and receive messages and calls with other computers. This way of sending information, not to mention data compression, makes the amount of information which must be transmitted for every call at least 3-4 times less for VoIP than the exact same call in a conventional telephone system. For this reason, VoIP is so much cheaper than conventional calling plans.

The Future of VoIP

While most analysts believe it will be at least a decade before companies and telephone providers make the full switch to VoIP, the potential for the technology's use today is already quite astounding. A report by the Forrester Research Group predicts that by the end of 2006, nearly 5 million U.S. households will be using VoIP phone service. With the savings and flexibility that the technology already offers, and new advances just ahead on the horizon, we can expect those numbers will only increase in the future.

Rich McIver is a contributing writer for VoIP Now: Voice over IP News ( http://www.voipnow.org ).

World On IP Community versus Telecoms Monopoly

World on IP community versus the TELECOMS' monopoly or a dream of a visionaryWhy VOIP... Read More

Telecom Industry Transition: WiFi, VoIP, WiMax - The Wireless Age is Already Here

VoIP on WiMax will make the latest 3G technologies obsolete before they are completely installed.... Read More

Text To Speech - Its Simple

Looking for a natural voice speech engine? Curious about what software can read your e-mails.... Read More

Voip Providers Review--- Choose The Best One For Your Business

Making phone calls applying a broadband Internet connection,known as VoIP (Voice over Internet Protocol), is... Read More

What can a VoIP Phone System Do for a Small Business?

Voice over Internet Protocol, or VoIP, is a term used to describe the transmission of... Read More

Is VoIP the ?Next Big Thing? in Telecommunications?

VoIP or Voice Over Internet Protocol has been simmering for the past few years. This... Read More

VoIP - What is the Problem?

In the beginning, when the Internet Protocol was first designed, no one was thinking about... Read More

VoIP: Finally Worth a Look

Dear Internet Friends, Hundreds of thousands of consumers collectively save millions of dollars each month... Read More

Do You Text Chat (IM) Online?

IM (Instant Messaging) - man, we thought we had it made in the shade when... Read More

How VoIP Will Affect Every Household and Business in the World

Seattle venture capitalist, Greg Gottesman, calls it "?one of the most important changes in communications... Read More

VoIP Overview

Since we're using computers all the time to do our work, let's make it easy... Read More

Will the Bell System Survive? A Massive Transfer of Wealth from Bell to VoIP is Underway

Will the Bell System Survive? A Massive Transfer of Wealth from Bell to VoIP Is... Read More

Is VoIP Good For The Home?

There is no doubt that you have heard about VoIP by now. It's made headlines... Read More

The Dangers of Peer-to-Peer Systems

Peer-to-Peer (P2P) systems do not operate on secure lines, thus providing a conduit for hackers... Read More

What Do You Know About VoIP?

What is VoIPVoIP is an acronym for voice over internet protocol, aka voice over ip... Read More

Try VoIP for Free - No Commitment, No Hardware

Try VoIP Before BuyingSo you like the concept of 'cutting' your phone service in favour... Read More

Broadband Phone Technology - Top 5 Reasons You Should Take Notice

For the uninitiated, the term broadband phone is loosely used to describe the technology currently... Read More

Google Joins the Internet Phone Revolution

Its not so long ago that the idea of free phone calls over the Internet... Read More

How Voip Can Mask The Size Of Your Business And Save You A Bundle

Have you heard the buzz about VOIP (Voice Over Internt Protocol)? Basically, it's like communicating... Read More

Get a ?Virtual Phone Number? - Eliminate Long Distance Charges with VoIP Phone Service

There's a revolution brewing in the telephone industry. But it's not the recent demise of... Read More

Take Your Home or Business Phone With You When You Travel

Voice Over Internet Protocol (VoIP) telephone service uses a broadband Internet connection (DSL or cable)... Read More

Use your Computer to make Cheap Long-Distance Telephone Calls

What is 'VoIP'?Simply put, VoIP refers to the carriage of voice signals over the Internet.... Read More

VoIP Phone Home?

The movie Extra Terrestrial (ET) coined the phrase "phone home" and each year American's look... Read More

Lower Videophone Prices Allow Individuals Accessibility

VoIP service providers are now offering videophone at the lowest price we've seen on the... Read More

A Look at Internet Voice Technology (VoIP) for Residential

Today's TechnologyOver the years, the technology has made remarkable progress. Telephony's improved data compression rate,... Read More

The Calling Card Alternative

For a few years now, the calling cards business is booming. Everywhere you go, everywhere... Read More

How to Never Pay a Hotel Phone Bill Again

The protocol is increasingly being adopted as the standard means by which computers communicate to... Read More

Take Advantage of Internet Phone Calls (VOIP)

Voice Over IP (VOIP) is a relatively new technology. Voice Over IP allows people to... Read More

What Is VoIP and How Does It Work

IntroductionThe way we make phone calls is changing. In fact in many circumstances things have... Read More

Using a Bluetooth Headset with your PC

BluetoothFor those of you not familiar with the term, Bluetooth refers to a wireless protocol... Read More

What?s Your IQ on Basic PC Phone (VoIP) Knowledge

Short T/F quiz1. T / F You can save a significant amount of money using... Read More

Consumer Review on CallWave Call Alert Service

Missing phone calls while you are online?Are you thinking of getting a private fax number... Read More

Voice over IP (VoIP) Features

Because with VOIP you can make calls from anywhere you have access to a broadband... Read More

Bluetooth Computer Headsets - Enjoy Wireless Freedom

Wireless Computer HeadsetsTill recently, few options were available to people interested in using cordless headsets... Read More

Will VoIP be a Mass Market Product?

A common thinking among "Marketing people " is that for every product that enters the... Read More

How to Choose VoIP Service Without Losing Your Shirt

Voip.Just mentioning the word to yourself either brings up images of walking in a new... Read More

Should You ,VoIP?

My friend in Florida, Samuel, called me last week and immediately I noticed a difference... Read More

Alarm Systems & VoIP (Voice over Internet Protocol) Phone Lines

An astounding and unexpected number of people are dropping their (POTS) plain old telephone system,... Read More

VoIP in the Home

VoIP is set to revolutionise home communications. With VoIP you can make telephone calls over... Read More

How VoIP Works -- Busting Out of Long Distance Rates

VoIP is the newest advancement in audio communications technology, and has a variety of different... Read More

Making PC to Phone VoIP Calls over Dial-Up Internet Connections

There's a lot of hype these days surrounding Internet-based voice communications (VoIP) replacing traditional telephone... Read More

Benefits of VoIP

You may not have considered it but there are many benefits that businesses can achieve... Read More

VoIP is Less Taxing than Traditional Telephone Service

When it comes to VoIP Broadband Telephone service, there are many benefits. Unlimited local and... Read More

VoIP (Computer Phone) Warning

Warning! Warning! Warning!Beware of VoIP internet service providers that operate on industry standard codec and... Read More

Finally Voip Worth a Look!

Everyone can Benefit from this Technology! Voip will be next communication tool in the world.... Read More

Security, Stability, and Interoperability Issues on VoIP Implementation

Now we have accepted that VoIP is no longer just a phone service, it has... Read More

VOIP

This article contains the excellent information about the Voice Over IP Protocol.Voice over Internet Protocol... Read More

VOIP For Your Business

Many companies are now beginning to look into alternatives to high priced telephone systems currently... Read More

Outstanding VoIP Voicemail Features Makes Getting VoIP Voicemail Extremely Convenient

There are many types of VoIP (Voice over Internet Protocol) protocols that are employed by... Read More

Voice Over IP ? Saving Money

I was on a tech support call with a client in Australia for over forty-five... Read More