When the system is active, each call is channeled through a recording switch before it is picked up by the receiving party. The Card does not in any way connect to the phone, nor does it replace existing phone service. This advance in telecommunication technology services allows you to record all of your phone calls on your cell phone, home phone and business phones. Now, record both sides of your cellular or fixed phone line conversations without any hardware, devices or hassle…Keep an archival record of the most important calls you get, from conference calls to sales orders.