Electricity is supplied throughout New Zealand at 230/240 volts, 50 hertz. Most hotels and motels provide 110 volt ac sockets (rated at 20 watts) for electric razors only.
For all other equipment, an adapter/converter is necessary, unless the item has a multi-voltage option. Please note that power outlets only accept flat 3 or 2-pin plugs, depending on whether an earth connection is fitted.
Most public call-phones take cards purchased from bookstalls and newsagents, with a minimum value of NZ$2. Some public call-phones also accept credit cards, but very few accept coins.
New Zealand phone numbers appear online in the White Pages (alphabetical listings) and Yellow Pages (business category listings).
Check with your phone company before leaving home about international mobile roam facilities available in New Zealand.
You will need a RJ45 type plug to be able to connect your laptop into a computer socket in New Zealand, and an adaptor with a flat two or three-point power plug to connect to the power supply.