By default call waiting is turned on for all users. On the DECT display with a call already connected, another incoming call will cause you to hear a single beep and the phone display will alternate between details of your current call and the waiting call.

You can only have one connected call plus one waiting call. Any further calls will see you as being busy and will either follow your forward on busy settings if set or else go to voicemail if available. If you don't answer the waiting call, it will follow your forward on no answer settings if set or else go to voicemail.

If you end your current call while you have a call waiting, the waiting call will start ringing and can be answered. You can end your current call and automatically answer the waiting call by using the Clear Call Waiting option. You can hold your current call and automatically answer the waiting call by using the Hold Call Waiting option.