Science and technology together has contributed in a large to the human race and one such important contribution came in the form of Walkie talkie. This hand held communication device works on the principle of frequency modulation. They are portable and are being used by a number of organizations since its inception. Continuous evolution in the field of engineering has only helped in bettering the Walkie talkie’s usage, performance and operation.
A conference call is a telephone call in which the calling party wishes to have more than one called party listen in to the audio portion of the call. The conference calls may be designed to allow the called party to participate during the call, or the call may be set up so that the called party merely listens into the call and cannot speak. It is sometimes called ATC (Audio Tele-Conference).