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Featured Voip Articles

VoIP Service Provider A vs. VoIP Service Provider B
Copyright 2005 Gobala KrishnanWhile doing research on the Internet, I realized that most people are absolutely confused when it comes to selecting a VoIP or broadband phone service provider. I can't say I blame them either, when you consider that there ...

VoIP Solutions
This article provides useful, detailed information about VoIP Solutions. In a traditional PSTN, the quality of service of the calls and continuous connection are very dependable; so, in order for people to switch to IP telephony, the same ...

What Is A VoIP Gateway?
The meshing of old analog telephone connections and VoIP service means that there has to be something that sort of brings the two together so that customers don't have to spend a lot of money to get the new devices needed for VoIP service. A VoIP gateway ...




A Brief Intro To 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.
About the Author
Mark is a technology consultant in the great Orlando area. His blog can be read online at http://www.voipblogonline.com.


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Voip News

Mobile phone chargers are energy vampires - Computerworld
Recommended November 19, 2008 (IDG News Service) A group of mobile phone makers is out to raise awareness that charging devices consume energy when left idle but plugged into an outlet. Around two-thirds of the energy used by mobile devices is wasted ...

New VoIP Phone Capabilities in Fluke Networks ’ MetroScope Carrier ... - Businesswire.com
EVERETT, Wash.--( BUSINESS WIRE )--Fluke Networks announced today the addition of VoIP phone functionalities to the MetroScope ™ carrier Ethernet analyzer. With the added internal VoIP calling capability, the MetroScope ™ analyzer now offers ...

New VoIP Phone Capabilities in Fluke Networks' MetroScope Carrier ... - Marketwatch
EVERETT, Wash., Nov 17, 2008 (BUSINESS WIRE) -- Fluke Networks announced today the addition of VoIP phone functionalities to the MetroScope(TM) carrier Ethernet analyzer. With the added internal VoIP calling capability, the MetroScope(TM) analyzer ...

Mobile VoIP Calls: Save Your Mobile Phone Bill Through VoIP - Best Syndication
The Voice Over IP (VoIP) technology has made it possible for people to intently use the service for connectivity purpose. The connectivity option brings to users the facility of free mobile VoIP calls . The user-friendliness of the system allows ...

Comcast Best in VoIP Quality, AT&T Best in VoIP Reliability - TMCnet
Originally posted on VoIP & Gadgets Blog , here: http://blog.tmcnet.com/blog/tom-keating/voip/comcast-best-in-voip-quality-att-best-in-voip-reliability.asp . Keynote Systems released their latest VoIP quality report with some interesting findings ...