|trueCall is a small electronic device which allows users to block nuisance phone calls at home. With a UK patent already granted the ‘phone spam filter’ has sold thousands of units since launching in March 2009. Founders Steve Smith and John have both worked in the call centre industry for over 20 years. In 2005 they published research showing the extent of the problem caused by nuisance calls which led to the idea for the device. When Steve appeared on Dragons’ Den last year he was offered investment from all five Dragons but eventually accepted a deal with Peter Jones.