Telstra Corporation chief customer officer Gordon Ballantyne says the telco’s plan to lift service standards and improve its standing among customers is on track.

Mr Ballantyne said on Friday Telstra was one-third of the way through a three-year program of change within the company.

It was going so well that, when asked to nominate his biggest concern – the one that kept him up at night – Mr Ballantyne was stumped for an answer.

“I don’t have a major business concern,” Mr Ballantyne said in response to the question.

“We’re winning in the market.

“We have the best network in the world.”

Moreover, Telstra had the best products and services any man or woman would want to have, products he would have “given my right hand for” when he was working for T-Mobile in the UK, he told an American Chamber of Commerce in Australia lunch in Sydney.

Figures presented at Telstra’s investor day last week showed Australia’s largest telco recorded a 28 per cent reduction in calls to its contact centre over the past 12 months, as more problems were able to be fixed without follow up calls.

Telstra also experienced a 50 per cent drop in complaints to the Telecommunications Industry Ombudsman, as overall customer satisfaction rose.

“Through the last quarter we are really beginning to see some of the benefits of the changes we’ve driven,” Mr Ballantyne said.

However, the company still had more detractors than promoters, using the net promoter score measure, figures from last week’s investor day showed.

Mr Ballantyne said he was excited about Telstra’s move from the copper network to offering products and services through the government-built national broadband network.

There was no organisation better equipped to face that opportunity than Telstra, he said.

Telstra shares closed down one cent at $3.12, on a day the broader market lost 1.4 per cent.