Teleconferencing [Audio or audio-visual meeting] among multiple participants in two or more locations is a strategic communication tool deployed by many companies with multiple locations and dispersed employees. Business cyclical shifts and economic downturns tend to see a rise in the use of teleconferencing facilities. Used judiciously and strategically, teleconferencing can enhance organizational productivity, engage employees at all levels and reduce travel budgets. Today Teleconference support both PSTN & IP telephony platforms.