In today's world, landline phones are quickly becoming a thing of the past. They've been out of most homes for a very long time, and many businesses even operate using cell phones only. Despite the fact that this is becoming more common, it's really not the best idea. All legitimate businesses should have a separate phone, ideally a landline at their actual place of business. While that might seem old-fashioned, it looks more professional and also offers a host of other benefits to any business.