Business phone systems can be simple or complex, depending on the number of lines and desk units to be installed. With a little forethought, purchasing a business phone system can allow you to have an expandable platform that is easily capable of handling the growth your company may experience. Many business phone manufacturers make equipment that is only useful within their product line. For this reason, it is essential to examine what products are offered to make sure that your needs will be met both today and several years down the road.