.: A Brief Intro To VoIP
By:Mark Dodd
Category:Home / Technology / VOIP
If you have an ear open to new computer technologies, you are sure to have heard about VoIP. Voice over Internet Protocol (VoIP) is an emerging set of applications which allows you to make telephone calls over the Internet. It is already starting to replace existing telephone networks, with some people and businesses opting to cancel their traditional phone line and use VoIP instead.
VoIP was originally developed to provide voice communication between computer users in different locations. Although it still has this application, it has been further developed into a telephone network in its own right. People using VoIP can call any telephone anywhere in the world and can receive calls on telephone sets connected to the Internet or Local Area Network (LAN).
Background
It all started back in 1995 when Israeli computer enthusiasts made the first computer to computer voice connection. In the same year this technology was developed into a software package called Internet Phone Software. All that was needed to talk to another computer user was a modem, sound card, speakers, and a microphone.
The software digitized and compressed the audio signal before sending it over the Internet in data packets. These voice connections could only occur between computers which had the software installed. The sound quality was very poor -- nowhere near the quality of standard telephone connections.
The technology continued to be developed and by 1998 gateways had been established to allow PC-to-phone connections. Later that same year phone-to-phone connections that used the Internet for voice transmission were set in place. These phone-to-phone connections still required a computer to initiate the call, but once the connection was established, the callers could use a regular phone set.
VoIP Today
There are currently many VoIP services available for residential and commercial use. Some of these still rely on PC-to-PC connections but may offer other services such as PC-to-phone and phone-to-phone.
Internet phones are available that plug into the sound card or USB port of a computer. These phones may have number pads and ringers that allow you to use them the same as traditional telephones. The computer can be bypassed completely by connecting a phone directly to a broadband modem (either DSL or cable).
How Does It Work?
The first step in using VoIP is converting your voice into digital data. This is done by 'sampling' your voice -- dividing the analog sound signal into discrete steps that can be assigned a number value. Once your voice is digitized, the data can be compressed.
This compressed digital data is split up into 'packets' of about 1500 bytes that can be transferred over the Internet. As well as the voice data, the packets contain information about their origin, their destination, and a timestamp that allows them to be reconstructed in the correct order. Once they arrive at their destination, they are reassembled and converted from digital back into analog so that the receiving party can hear your voice.
In order for voice data to be transmitted without noticeable delays, a broadband Internet connection is necessary. Many households and businesses are already using broadband (either DSL or cable) so adding VoIP is relatively simple.
Article keywords: VoIP
Article Source: http://www.articles32.com
Mark is a technology consultant in the great Orlando area. His blog can be read online at www.voipblogonline.com.
.: New VOIP Articles
1). 6 Voice Over IP Tips
There are many benefits to VoIP. Here are 6 benefits we found to voice over ip. You may be able to think of even more reasons to switch or to include this exciting way to communicate at reduced prices.
2). Top 10 Reasons You Should Switch To VoIP
If you are considering changing to voice over internet protocol or VoIP for short you need to know the arguments for changing. Here are our top 10 reasons to switch to VoIP.
3). 7 Good Reasons Not To Switch To Voice Over IP Technology
For every positive there is a negative when it comes to voice over ip technology. Here are 7 good reasons not to switch in spite of the savings you may realize.
4). How To Choose The Best Voice Over Ip Provider
Choosing the best voice over ip provider may require you to do something that you have never done before. Here are a few tips to help you choose the best voice over ip provider.
5). Residential VoIP: Things to Consider Before Switching
Choosing VoIP over traditional telephone services has its pros and cons just like anything else. It is up to the consumer to weigh the advantages and disadvantages, and to come to a conclusion with eyes wide open.
6). Advantages of IP Telephony for the Residential Consumer
As more of us are building our own local area networks at home to connect our family members to each others data and appliances, broadband connections to the outside world have expanded our pipe to the Internet, giving us plenty of bandwidth to consider converging our home network with voice over IP telephony.
7). VoIP Communication Technology
VoIP... or Voice Over Internet Protocol, is the latest and greatest communications technology.
.: Top VOIP Articles
1). VoIP Problems?
Well of course there's VoIP problems, although I think problems is too strong of a word. Instead I would call this VoIP issues. (Just semantics? maybe, read on!)
Some may be old enough to remember making long distance calls where there was static or crackling on the phone line connection. Maybe you remember having to speak LOUDER in order to be heard on the line.
2). How To Set Up A Business VoIP System
To set up a business VoIP system, you need several components. A central device to manage the calls, the way a private branch exchange (PBX) or key system unit (KSU) does in traditional phone systems is one of them.
This can be a dedicated piece of hardware such as an IP PBX, a regular PBX that has been IP-enabled, or a server running specialized software.
3). VoIP Information: Benefits & Drawbacks
Once upon a time, a telephone was just a telephone. You set the base in your home and it featured either a corded or cordless handset for talking to family and friends. Even though that same telephone remains the standard, VoIP, which stands for Voice over Internet Protocol, is increasing in popularity and gradually beginning to change the way that the world sends and receives telephone calls.
4). Skype versus Yahoo
With the influx of complaints regarding Skype’s fall from grace, Danny Wirken measures up the top competitor and internet giant Yahoo!’s news internet telephony service.
Cheaper, faster, better quality, better customer service and a brand you can trust. These are the things Yahoo! want you take away from any of their promotional material for the new Yahoo! voice VoIP service.
5). Voice Over Ip – What Is It And What Are The Choices?
Voice over Internet Protocol. First was the telephone. Alexander Graham Bell had a vision. He saw people communicating over long distances with their own voice, not trough beeps and squeaks. Then came the Internet. A few students and the US military had a vision, somewhat similar to Bell’s. They saw people communicating over long distances, but this time in writing.
6). Why VOIP?
Voice Over Internet Protocol delivers the service of converting the analog line into a digital signal so that voice could be transferred through the internet and this proves to be a lot cheaper than the PSTN (public switched telephone network). Voip is the best for making long distance calls in, inexpensive rates.
Voip and IP telephony are fields which have seen extensive growth and they continue to develop efficiently.
7). Advanced VoIP Gateway Technology
Increased demand for video-based applications in the mobile network drive the deployment of 3G networks. Inherent complexities in traditional video gateways cause performance bottlenecks and inflate costs. If the industry expects to absorb the impending explosion in demand, these proposed cost-saving and complexity-reducing changes are needed.
Unrelenting market demand for video-based applications over mobile networks is driving the increased deployment of 3G networks.