A gadget designed by a West Norwood business has almost sold out after a highly successful airing on hit TV show Dragons’ Den.

TrueCall, which automatically screens out and “zaps” nuisance telephone calls, has sold almost 3,500 units since appearing on last Wednesday’s show, and owners John Price and Steve Smith have ordered another 10,000 from their manufacturers in China as a result.

The gadget was lavished with praise by the five business “dragons”, each of whom made an offer for a share of the business, with telecommunications guru Peter Jones eventually grabbing a 12.5 per cent stake for £100,000.

It will now be launched around the world by next year.

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