Telecommunications is an area of technology that has lapsed embarrassingly far behind every other industry. Almost every one in the world uses this technology. Communication has become one of the basic needs of people. Since this technology evolved it undergone lot of inventions. One of such invention is VoIP.
VoIP is a technology that makes use of IP network to make calls. It provides many advantages like cheaper call rates all over the world, efficient usage of IP bandwidth etc. Many countries already adapted this technology in various domains including public telecommunications. Internet almost reached everywhere in the world. Countries like USA, England, France provides high speed internet at very low cost within their countries. This allows VoIP to play a major role. Since VoIP uses IP network to make calls it dramatically reduces the cost of communication almost to zero.
VoIP provide flexibility through adapting it with existing technology like PSTN, GSM etc. This is done by making use of a special device called gateway. A gateway can merge two different types of networks and allow them to communicate. Hence it is possible to communicate any network in the world through VoIP using gateway.
The main advantage of this is reducing the cost of call through out the world. Because calls made within the countries is cheaper than making calls outside the countries. Since IP network is a huge WAN that connects the world. VoIP can easily communicate through every countries local PSTN network with the help of gateway through IP. This makes one to call anywhere in the world as a local call. Thus the cost is reduced.
An incredible revolution is under way. It has been a long time in coming, but now that it has started, there will be no stopping it. It is taking place in an area of technology that has lapsed embarrassingly far behind every other industry that calls itself high-tech. The industry is telecommunications, and the revolution is being fueled by an open source Private Branch eXchange (PBX) called asterisk.
Asterisk is software that turns an ordinary computer into a voice communications server. Asterisk is the worlds most powerful and popular telephony development tool-kit. It is used by small businesses, large businesses, call centers, carriers and governments worldwide. Asterisk is open source and is available free to all under the terms of the GPL.
Considering all the above factors and sensing the future of VoIP this project is started developing. The ultimate motivation of this project is to develop a VoIP server that runs on low power embedded device which provide the full functionality of VoIP.
And hence Asterisk was made to run on beagleboard .