In the past, when you call an office building or business, you would either be transferred to the department you want to talk to, or given their extension number. This extension is usually a 2-3 digit code that when dialed, transfers you automatically to the particular person or department you want to speak with. The reason why this code works is because it is programmed into a PBX system.
Advanced Innovative Technologies Inc., was founded in 1988 as an engineering research and product development firm. The areas of expertise encompassed range from Information Technology (IT) to advanced materials and telecommunications.