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Voice over Internet Protocol

Introduction

Voice over Internet Protocol, also called Voice over IP, VoIP, VoIP, and VoIP (for its acronym in English, Voice over IP) is a group of resources that enable the voice signal to travel over the Internet using a IP (Internet Protocol). This means that sends the voice signal in digital form in data packets, instead of sending it in analog form through the circuit using only conventional telephone networks (PSTN stands for Public Switched Telephone Network, Public Switched Telephone Network).Research Questionsa) What are the advantages and disadvantages of VoIP?b) What are the potential challenges of employing Voice over IP?

Today it is assumed that, by pressing a few buttons, you can establish a voice connection in seconds with people on the other end of the globe. However, the technology that led to the telephone network, one of the most complex creations of the twentieth century, dates back only about a century ago. Since the invention of the telephone, occurred on the Italian Antonio Meucci and, independently, the American Alexander Graham Bell, there were many innovations that have led to the current set of telecommunications.

VoIP

Vinton (pp, 637-648) maintains that “VoIP (Voice over IP) - a technology that enables transmission of voice via the Internet or dedicated networks using IP protocol, often used as a synonym for password, Internet telephony. While VoIP is created digital representation of voice, it is compressed and divided into packets. This packet stream is then transmitted over a network with other data.”In the receiving device the entire process is played in reverse so we get a normal voice signal. The IP network can be any packet switched network including ATM, frame really, the Internet, the network links based on TI (E1) (Vinton, pp. 637-648). For VoIP communication can be carried out the necessary specialist equipment and software.To Build VoIP Networks Are Used Primarily

VoIP gateway - is responsible for connecting IP telephone network to other network types. Gateway must provide real-time interface between various formats and procedures for communications transmission. An example is the configuration of the PBX telephone exchanges, the standard telephone network PSTN or ISDN. Mobile Internet - software running on your PC (soft phone), or a dedicated device connected directly to the IP network, enabling the implementation of VOIP, Mobile customers who have the ability to initiate and receive notifications. Servers and VoIP routers - you can create a network of private voice and overseeing the conduct of all interviews conducted in such a network, access control bandwidth, routing entries, accepting and rejecting applications in the area, and authorization of users. VoIP protocols and codes are a set of standards to enable compression and decompression of audio and communication between devices and transmission of packets.

Advantages of VOIP

Cross Cutting

One of the biggest advantages of VoIP is the price, call the network is advantageous than using a traditional phone service. Most VoIP providers offer affordable rates for domestic calls only, others one rate for national and international calls. You can use this service even in the ...