The clouds are about to clear for New Zealand customers who can't decide which telecommunication plan best suits their needs. Our three biggest telcos - Spark, Vodafone and 2Degrees - have agreed to implement changes drawn up by the Commerce Commission to improve choice. They must provide a year's worth of usage and spend information to all customers, many of whom may have accepted plans that don't suit their needs. A comparison tool will also be developed, to allow an easy comparison of providers and plans. Consumer New Zealand chief executive Jon Duffy spoke to Susie Ferguson.