5.8GHz Extended Range. Handset Speakerphone - This feature gives you the freedom to use the handset as a speakerphone. Extra Handset and Charging Cradle. Digital Answering System - The product utilizes microchip technology (no more tapes or moving parts.) This ensures clearer recordings and longer life. Access Answering System Using Handset. Caller ID/Call Waitingâ€ - Displays the name and number of the caller in Call Waiting even while you are on the phone. â€ To activate the Caller ID features, you must subscribe through your telephone company.