NRX-5 - Display Feature Phone1.1.8 Set Area Code• Scroll to 'AREA CODE' on the System Menu and then press theSELECT button.• If no Area Code is programmed into the unit then 'ADD AREA CODE?' will bedisplayed on the screen.• Press the SELECT button again. The display will show 'ENTER AREA CODE'.• Enter using the keypad then press the SELECT button.If you select 'AREA CODE' from the System Menu when an area code hasalready been programmed into the unit, then 'CHG AREA CODE' appears onthe display together with the area code already entered. To change the code,press the SELECT button, enter the new code using the keypad then pressSELECT again. To delete the code press the SELECT button twice.1.1.9 Set PABX PrefixThis function allows Caller ID numbers to be stored into the Phone Book withthe correct prefix to allow direct dialing.• Scroll to 'PABX PREFIX' on the System Menu and then press theSELECT button.• If no PABX Prefix is programmed into the unit then 'ADD PABX CODE?'will be displayed on the screen.• Press the SELECT button again. The display will now show'ENTER PABX CODE'.• Enter using the keypad then press SELECT button1.2 New Zealand CLIDThe default setting for New Zealand CLID is OFF.2. OPERATION2.1 DiallingLift the handset and dial the number. The telephone is pre-set at tone mode.To terminate a phone call, simply replace the handset.2.2 Volume ControlHandset or Headset mode:• During the call, pressing volume buttons once will decrease or increase thevolume level respectively.• There are 4 levels for handset or headset receivers.