OL5815 User Manual 1416 Setting RINGER ON/OFF1. The current RINGER ON/OFF setting is displayed.2. Press ‘▼/#’ or ‘▲/*’ to select the desired setting, and the display will update to the current setting: ‘RINGER ON’Æ‘RINGER OFF’Æ ‘RINGER ON’……..3. Press ‘MEM.’ key to confirm. After confirmation, you will enter HANDSET NUMBER setting.If you don’t want to reset the time and date, press ‘MEM’ again to exit programming mode and return the Handset toidle mode.17 Setting Handset Number1. Press 1 - 4, or ‘▼/#’ or ‘▲/*’ to select a handset number. Each handset requires a unique number. We recommendusing ‘1’ and ‘2’.2. Press ‘MEM.’ key to confirm. After confirmation, you will enter DATE / TIME setting.18 Setting Date & Time1. Press the appropriate digits to enter first the time and then the date.2. To change the AM/PM setting, press any digit (0-9).3. Press ‘▼/#’ or ‘▲/*’ to skip forward or backward.4. Press ‘MEM’ key to confirm. After confirmation, you will enter CONTRAST setting.R I N G E R O NH S NO . = [ 1 ]DATE / TIME10:00 PM 1 0/3 0