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VoIP - Voice over Internet Protocol :-
| Definition:- VoIP is a technology that allows telephone calls to be made over computer networks like the Internet. VoIP converts analog voice signals into digital data packets and supports real-time, two-way transmission of conversations using Internet Protocol (IP). VoIP calls can be made on the Internet using a VoIP service provider and standard computer audio systems. Alternatively, some service providers support VoIP through ordinary telephones that use special adapters to connect to a home computer network. Many VoIP implementations are based on the H.323 technology standard.VoIP offers a substantial cost savings over traditional long distance telephone calls. |  |
| VoIP is based on the Internet Protocol (IP), which is in fact, along with TCP (Transmission Control Protocol), the basic underlying protocol for the Internet. By virtue of this, VoIP also handles media types other than voice: you can transfer images, video and text along with the voice. For instance, you can speak to someone while sending files or even showing yourself using a web cam. |
| It is known that about 50 % of a voice conversation is silence. VoIP fills the empty silence spaces with data so that bandwidth in data communication channels is not wasted. In other words, a user is not given bandwidth when he is not talking, and this bandwidth is used efficiently for other bandwidth consumers. Moreover, compression and the ability to remove redundancy in some speech patterns add up to the efficiency. |
| The underlying network for VoIP does not need to be of a particular layout or topology. This makes it possible for an organization to make use of the power of proven technologies like ATM, SONET, Ethernet etc. VoIP can also be used over wireless networks like Wi-Fi. When using VoIP, the network complexity inherent in PSTN connections is eliminated, yielding an integrated and flexible infrastructure which can actually support many types of communication. The system being more standardized, it requires less equipment management and is therefore more fault tolerant. |
| Telecom companies need a seamless, high-speed connectivity to connect with their network of affiliates, customers and offices around the country. Anjnay offers you 24x7x365 dedicated Internet service which is fast, reliable and cost effective. Anjnay, a leading Infrastructure provider, provides last mile connectivity access all across the country. With access to multiple gateways and redundant routes, Anjnay provides a world class 'always on' internet experience. |
| Simply said, a router is a device used for Internet connection. A router is also commonly called a gateway, although technically a router and a gateway are not the same thing. New devices encapsulate so many functionalities that one device can do the work of many devices on its own. That's the reason why one term is often used to denote different types of devices. Actually, a gateway does the work of a router, but has the ability to conciliate two networks working on different protocols. You need to have an ADSL router if you have an ADSL broadband connection at home or in your company network; and a wireless router if you have a wireless Internet connection. Note that most people are turning towards wireless routers, since these also include support for wired networks: they have cable ports to which you can plug in your network cables and devices. Wireless routers are better investments |
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