The BT1600 has type II caller display so shows the callerâs telephone number on the handset display. If the callerâs number matches an entry stored in the phonebook, the name will be displayed instead. With type II caller display you can also see who is calling, even when you are already engaged in a call. (Caller Display is required from your network provider to enable this feature). Other useful features include a built in digital answer machine, an easy to read 2-line dot matrix display with amber backlight, 50 name & number directory, 9 quick dial memories, 50 numbers call list, 20 number redial list, auto answer, secrecy, earpiece volume control, clock, alarm, illuminated keypad, low battery indicator & low battery alert. Box Contains 1 x Base Unit including charger 1 x Handset Rechargeable batteries 1 x Mains power adaptor 1 x Telephone line cord User Guide