Hundreds on your contact book and hundreds more who can access your number and call any time they find fit. Is there a way to make owning a phone less intrusive while staying connected with others? No matter how advanced your phone is, when you receive a call you have just two options - answer or hang up. Advanced Call Manager (ACM) is the app that handles your phone calls just like you would, plus a helpful technology boost. You get more call-handling options (busy tone, busy tone and SMS auto-reply, mute the ringer) and can personalize your response to different callers.