Calling with an extension number allows you to reach a specific person or department within a company or organization. It is a convenient way to connect with the right person without having to go through a receptionist or navigate a complex phone menu.
Extension numbers are typically used in larger organizations with multiple employees. Each employee is assigned a unique extension number that is used to identify their phone line. When calling a company, you can dial the main phone number and then enter the extension number of the person you wish to reach. This will connect you directly to their phone line, bypassing the need to speak to a receptionist or go through a phone menu.