You can use a payphone with coins or a card. All payphones accept 10p, 20p, 50p and £1 pieces; the newer ones also accept £2 coins. The minimum cost of a call is 60p.
Phone cards are more convenient than coins and can be bought from newsagents and post offices. If you use a credit card, note that it carries a minimum charge and that your calls will be charged at a higher rate.
Content provided by DK Eyewitness Travel Guides (www.traveldk.com)