.: What is Internet Telephony?
By:Hope Ocampo
Category:Home / Technology / VOIP
Internet telephony refers to communications services like voice, facsimile, and/or voice-messaging applications—that are transported via the Internet, rather than the public switched telephone network (PSTN).
The basic steps involved in originating an Internet telephony call are conversion of the analog voice signal to digital format and compression / translation of the signal into Internet protocol (IP) packets for transmission over the Internet; the process is reversed at the receiving end. Internet Telephony is a general term for technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, video and other forms of information. Internet Telephony converges voice, video and data, effectively collapsing three networks into one. To date, however, Internet telephony does not offer the same quality of telephone service as direct telephone connections.
Internet Telephony utilizes established data communication networks to provide telephone services between users. The user phone (or multimedia package on a PC) is attached to a specialized Digital Signal Processing (DSP) device where the voice signal is converted into data packets. Special software on the conversion device translates the destination phone number into an IP address, attaches the appropriate IP header information to the packet, and forwards it to the nearest IP data router to be forwarded to the destination address. The destination system utilizes its DSP to convert the data packets into a voice signal that can be heard on a regular phone receiver or PC speakers.
There are three different ways to place a call using Internet Telephony -
ATA – The most common way to place a telephone way using Internet Telephony is ATA. ATA stands for analog telephone adapter; and it takes the analog signals from your phone and converts it to digital data ready for transmission over the Internet. ATA allows you to connect a standard telephone device to your computer for use with Internet Telephony. You need special software to make it work, but overall is very easy to use.
IP Phones – IP phones look and function just like your ordinary everyday phones but instead of routing your phones through the PSTN lines they route your calls through the Internet Protocol.
Computer to computer – This is by far the simplest way to use Internet Telephony. All you need are special software programs that can route your calls. There are many software available that you can use to many calls directly using your Computer. Other than the software you need a microphone, speakers, sound card and a fast Internet connection.
There are many internet telephony books, VoIP tutorials and VoIP books available that will guide you or you may just browse the internet and search for VoIP comparisons or VoIP reviews before you may any investment in Internet Telephony software or hardware.
Article keywords: internet telephony, ip telephony, voip architecture, voip solutions architecture, voip books, voip book, voip providers
Article Source: http://www.articles32.com
To find out more about voip, please visit VoIP Architecture.
.: 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.