Today man can communicate form one part of the world to the other part of the country easily with the help of telephone system . Within the help of computer they can solve different types of problems , sending and receiving mail or voice mail to the others in the form of text they send electronic mail. The information Technology is synonymously used as advanced applied computer technology such as in communication and networks these days . Within a minute man can communicate through telephone . Now a days many people of this whole world wants to meet the simple and easy way to do every types of works so by the communication facilities makes the people easily.