A call appearance is a connection between two or more directory numbers, for example, when one telephone user places a call to another. Multiple call appearances are needed on phones to use features like transfer and conference.
Office Call appearances allow a single user to make, answer and switch between multiple calls by pressing the appropriate call appearance button for each call. During busy times, you may find that you have more than one call coming into you. With call appearance you’re able to see all the numbers calling you and select the one who you feel is the most important.