Skip to main content

VOIP



INTRODUCTION
Voip (Voice over Internet Protocol) is simply the transmission of voice traffic over IP-based networks.


The Internet Protocol (IP) was originally designed for data networking. The success of IP in becoming a world standard for data networking has led to its adaption to voice networking.

VoIP Telephones

There are three methods of connecting to a VoIP network:
Using a VoIP telephone
Using a "normal" telephone with a VoIP adapter
Using a computer with speakers and a microphone

Types of VoIP Calls

VoIP telephone calls can be placed either to other VoIP devices, or to normal telephones on the PSTN (Public Switched Telephone Network).

Calls from a VoIP device to a PSTN device are commonly called "PC-to-Phone" calls, even though the VoIP device may not be a PC.

Calls from a VoIP device to another VoIP device are commonly called "PC-to-PC" calls, even though neither device may be a PC.

How Does it Work?

The most common way VoIP works is that the end user establishes a hi speed broadband connection, a router and a VoIP gateway. Instead of a standard telephone line, the router sends the telephone calls over an Internet connection. The VoIP gateway, placed somewhere in direct proximity of the connected Internet converts the analog signals into digital format, which are further broken down into smaller chunks called 'packets', before sending it over the Internet, much like the way data is transmitted to and from the computer. These packets are sent to their final destination and instructions for bringing back into an understandable form are embedded in them. It then goes through a VoIP gateway where the packets are reconverted into the original analog format utilizing a PSTN (Public Switched Telephone Network), thereby routing the call to the number the caller has dialed blending old school technology and hi tech delivery in a seamless and instantaneous way.

VoIP Features

The biggest advantage of VoIP is that the customers can make calls from anywhere in the world where a broadband Internet connection is available. The customers can take their IP phones or ATA's with them on national and international trips and still can manage to access what is essentially an individual's domestic phone line.

Then there are the softphones, which a software application that loads the VoIP services onto the desktop or laptop. Some even simulate an interface that looks like a telephone, with which you can place VoIP calls to anybody around the world, through a standard broadband connection.

Most VoIP services come with the caller id, call waiting, call transfer, repeat dialing and three-way dialing features. Most VoIP services also allow the user to check his/her voicemail over the web or attach messages to an e-mail that is sent to his/her PDA or PC.

What is voip conferencing software?

VoIP conference software comes in two basic varieties: free and commercial.
The free VoIP conference software packages tend to be difficult to setup and use; the commercial VoIP conference software packages tend to be slick and easy to install and use.Of course, the commercial VoIP conference software packages also come with setup fees and recurring costs for conference room access.Which option you choose depends upon your budget of time and money.

VOIP hardware
VoIP hardware falls into several categories:
VoIP Interface Cards for PCs
PC Telephones
VoIP Telephones
VoIP Switches
VoIP Gateways
VoIP Routers
VoIP PBX's
VoIP Telephones
VoIP Interface Cards

VoIP Interface cards for PCs turn your PC into a very capable VoIP telephone.

Leading manufacturers of VoIP interface cards for the PC include:
Digium
VoiceTronix
Quicknet
PC Telephones

PC Telephones are telephones which attach to your PC, usually via the USB port, and allow you to make telephone calls through your PC.
VoIP Telephones

VoIP telephones are telephones which attach directly to Ethernet network ports.
VoIP Switches

VoIP switches are devices which allow you to connect multiple phone lines to one Ethernet port. This allows every telephone which is connected to the switch to place VoIP calls.
VoIP Gateways

VoIP Gateways connect VoIP networks to the PSTN (Public Switched Telephone Network).
VoIP Routers

VoIP Routers route VoIP traffic in much the same way that regular routers route IP (Internet Protocol) traffic.
VoIP PBX's

VoIP PBX's are high-tech low-cost equivalents of traditional telephone PBX's. In addition to traditional PBX functionality, VoIP PBX's configure and manage VoIP network capabilities.

How to setup skype?

Voice over Internet Protocol, or VoIP for short, is quickly becoming recognized as one of the leading ways of communication over the Internet.


Skype is one of the most widely used programs for PC to PC calling using VoIP. To use this, you will need to have Skype installed on your computer.


You can download skype from Get Skype.
A window will open asking what you want to do with a file called SkypeSetup.exe. Click 'Run' to downloads and execute the software. A confirmation message may appear asking if you're sure you want to run this software. Just click 'Run' again.


Skype enables you to talk to anyone around the world for free. However there are a few requirements that must be met by both ends calling. This consists of a few key bits of equipment:
A broadband Internet connection
A microphone
Speakers
Labels:

Comments

Post a Comment

Popular posts from this blog

INDIA IN WORLD

The Republic of India is the world's most-populous democracy and has one of the fastest economic growth rates in the world ( 8.9 percent GDP increase in 2007, the second-fastest major economy in the world after China). With the world's fourth largest armed forces , and twelfth largest economy by market-exchange rates, it is considered to be a regional power and a potential superpower . It is India's growing international influence that increasingly gives it a more prominent voice in global affairs. After India gained independence from the United Kingdom in 1947, it soon joined the Commonwealth of Nations and strongly supported independence movements in other colonies , like the Indonesian National Revolution . A nuclear bomb test in 1974 made India the first confirmed nuclear state outside the United Nations Security Council . What is notable about the foreign relations of India is that it maintains good relationships with both Russia and United States at the sam...
Post a Comment
Read more

knowledge

Knowledge is defined in the Oxford English Dictionary as (i) expertise, and skills acquired by a person through experience or education; the theoretical or practical understanding of a subject, (ii) what is known in a particular field or in total; facts and information or (iii) awareness or familiarity gained by experience of a fact or situation. Philosophical debates in general start with Plato's formulation of knowledge as "justified true belief". There is however no single agreed definition of knowledge presently, nor any prospect of one, and there remain numerous competing theories. Knowledge acquisition involves complex cognitive processes: perception, learning, communication, association and reasoning . The term knowledge is also used to mean the confident understanding of a subject with the ability to use it for a specific purpose if appropriate. See Knowledge Management for additional details on that discipline.
Post a Comment
Read more

INDIAN CURRENCY

After independence, new designs were introduced to remove the portrait of the King. The government continued to issue the 1 rupee note, while the Reserve Bank issued other denominations, including the 5000 and 10,000 rupee notes introduced in 1949. In the 1970s, 20 and 50 rupee notes were introduced but denominations higher than 100 rupees were demonetized in 1978. In 1987, the 500 rupee note was reintroduced, followed by the 1000 rupees in 2000. Circulating Coins (*) Value Technical parameters Description Date of Diameter Mass Composition Shape Obverse Reverse first minting last minting 5 paise 22 mm (diagonal) 1.5 g Aluminium Aluminium Aluminium or aluminum is the chemical element in the periodic table that has the symbol Al and atomic number 13.... Square Emblem of India Emblem of India Category:National coats of armsCategory:National symbols of Indiade:Wappen Indienses:Escudo de la India... Value 1957 1994 10 paise 16 mm 2 g Ferritic stainless steel St...
Post a Comment
Read more