Send all unknown calls to the Answering System with the Smart Call Blocker - AT&T DLP73X90

Learn to set up Smart Call Blocker to send all unknown calls to the answering system. To learn more about the AT&T DLP73290/DLP73390/DLP73490/DLP73590 Cordless DECT phone, watch the following playlist:    • AT&T DLP73X90 Series | Setup and operations   #Smartcallblocker #dectphone #ATT