Recent technology changes in intercom systems have made them extremely easy to install, as intercoms are now available in wireless form. Due to these recent changes in the product, starting a business that sells and installs wireless intercoms is a fantastic business opportunity for just about anyone, regardless of construction or business experience. Intercom systems have wide range of uses including: Installations in baby nurseries, residential and commercial. Business applications for warehouse to office communications. Security applications for residential and commercial door entry use. Overall this is a very good choice for a new low-investment business start-up that has the potential to generate a very lucrative income for ht owner-operator of the business.