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.
Orbtalk are a leading Voice over IP provider based in the UK. With a large customer portfolio based throughout the UK and worldwide, Orbtalk aim to provide the right telephony solution for your business.