It wasn't only credit card readers in Denmark that used the calculator style, most of the POTS phones I've used in my life - like http://www.scandinavian-design

It wasn't only credit card readers in Denmark that used the calculator style, most of the POTS phones I've used in my life - like http://www.scandinavian-designers.com/EN/wp-content/uploads/2011/08/Beocom-1000-2000BO-TelecomBeocom-1000-2000%E7%B3%BB%E5%88%97%E9%9B%BB%E8%A9%B1%E4%B8%B9%E9%BA%A5BO-03.jpg http://www.scandinavian-designers.com/EN/wp-content/uploads/... - have used the calculator style. The emergency number used to be 000, but it was changed to 112 to match the rest of the EU.