UK Director General of Telecommunications Bryan Carsberg has recommended the introduction of call metering systems on public telephone networks, with a view to helping staunch the flow of customer complaints and to boost confidence in British Telecom’s billing procedures, which have been criticised in recent months; under the new scheme the British Approvals Board for Telecommunications will grant approval to systems which meet a performance standard and approvals will include all activities involved in billing systems and will extend to any future ones.