VOIP

3 Pages 775 Words

INTRODUCTION


VOIP means voice over Internet Protocol. A term used in IP telephony to manage the delivery of voice information using the Internet Protocol. It is used to send voice information in digital form in packets rather than using the telephone network. VOIP uses a real-time protocol to help ensure timely and prompt delivery. It also has the potential to change communication and to speed up the delivery of advanced services to all Americans.

ADVANTAGES

A major advantage of VOIP and Internet telephony is that it avoids the tolls charged by ordinary telephone services. Other advantages include, integration of voice and data, simplification, network efficiency, cost reduction, and many more. The comparison between data and voice network is very similar and the Internet is a huge part for both. The industry trends work over telephone services also. However, the benefits of using IP as a generic platform for both data and real-time application are compelling enough to resolve all issues.

MAJOR SYSTEMS

A major system component would be the gateways. They are devices that control the communication between the telephone signals and the IP endpoints. It is also an information services that delivers voice communications and joins voice coverage with other data applications and devices. The gateways perform six functions, search function, connection function, digitizing function, demodulation functions, compression function, and decompression and remodulation functions. When the gateway is still performing steps it also receives packets that is where gatekeepers take place.
The gatekeeper performs address translation, admissions control, bandwidth management and zone management. An IP telephone is another system component. These devices replace the old telephones by providing enhanced services that are best used for VOIP.
QUALITY

The voice quality is very important to VOIP technology. There are certain factors tha...