The live switch screen alerts you to new calls without ringing your phone.
You are alerted to unanswered calls in a non-disruptive way that allows you to transition smoothly from your current activity. If you are in a meeting or a discussion when new customer calls arrive, you have time to notice the new call and respond knowing the customer is on hold. You are not interrupted and forced to answer the call immediately. Your phone will only ring when you tell it to.