Bracken Bay, a kitchen supplier, admits to using a system that did not comply with regulations set by Ofcom and the Telephone Preference Service.
It claims it has decommissioned that system at a cost of £140,000 and purchased a new, compliant system from Amcat at a cost of £200,000.
The new system keeps silent call volumes below 3% and also plays a recorded message identifying the caller in the case of a silent call.
In addition, Bracken Bay has ensured it does not call TPS-registered numbers by implementing a screening system supplied by UKDataID.
The company was identified by Ofcom as one of four that repeatedly exceeded the 3% upper limit for silent calls as the proportion of total calls in any 24-hour period between April and July. The other three are Carphone Warehouse, Toucan Telecom and Space Kitchens.
Ofcom has allowed each of the four companies until December 6 to respond, after which it will consider what action is appropriate. It may impose a fine and the maximum amount possible is £50,000 a call.
John Fleming, managing director of Bracken Bay Kitchens, said: "On hearing that the procedures we had in place did not comply with Ofcom's regulations we took immediate steps to rectify this."
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