Voice over IP, also known as IP telephony, is an emerging technology and a group of technologies that enable the exchange of multimedia and voice communications over public switched telephone networks (DSL), such as the Internet. Voice over IP can be defined as data transmission over the Internet using VoIP technology and IP telephony.
For users and companies with multiple users, IP telephony is ideal for data sharing between different branches or locations. VoIP telephones also offer a better solution for business-to-business calls. Voice over IP works through digital telephony or IP telephony over the Internet, where the IP address is used to provide the IP-address of the user to the telecom company.
The voice communication takes place over the Internet through the internet protocol network. The Internet protocol network is made up of several networks with common features. These common features include Ethernet, TCP/IP, VOIP, IP packets and the Internet protocol.
All of these networking protocols are based on the same basic idea of Internet-wide connection to the Internet using any one of the existing IP networks. VoIP is an example of an IP protocol, which is used to provide high-quality voice over the Internet. In addition to voice over the Internet, VoIP can also transmit video over the Internet. Some VoIP phones also allow users to talk through their computers.
As VoIP technology is used for data transfer, some VoIP phones also have the facility of allowing users to make instant phone calls by dialing a specific number. This facility is referred to as Instant Messaging. Users can also make web calls using the Internet telephony. With this facility, a caller can browse through the web and reach out to a user sitting in another location with the help of a web camera. Web browsing can be done by voice or by web cameras.
With VoIP technology, the IP address of the user can be easily identified during an Internet call. The users can use voice to text features to send messages or e-mails. They can also call back the user of a previous conversation with the help of a virtual operator who may take over the call by talking in a professional manner to the caller.
A voice over IP phone also allows the users to make live video conferencing. through the internet rather than through traditional conferencing services like Skype and video calling. Voice over internet phone also enables users to send and receive calls to different parts of the world, regardless of their location. This feature is usually referred to as cross-platform.
Using VoIP, users can now get to meet people from other parts of the world even if they are located at a distance. through voice conferencing. The technology allows them to remain connected in various places. With VoIP, people can now easily communicate with each other through their email addresses or their IM accounts without leaving the comfort of their homes or offices.
Internet users are now able to make international long distance calls using the service of the same VoIP network. This facility is usually provided with the help of a broadband Internet connection in an area where a person wants to make a call. VoIP technology also has the facility to enable the users to make international long distance calls at cheap prices.
With VoIP, users are now able to receive faxes at their homes and offices, making the task of sending and receiving faxes much easier. Even business people can now do online faxing with the help of VoIP. technology. VoIP has made it possible for users to send and receive faxes from anywhere in the world.
VoIP also enables users to make local calls on the Internet as well. As VoIP works through IP network, calls can be made to and from local phone numbers. As a result, the calls are cheaper and less expensive. In addition, calls can be made as long as there is an Internet connection.
Since the phone service is also available on the Internet, people who want to talk online can make calls from anywhere in the world at very affordable rates. Many people use VoIP for business purposes because it offers all the facilities that are required to make business calls. Even while travelling in foreign countries, they can still continue to make their calls using the Internet.