Three has revealed that up to 15,000 of its customers are using its 3G network to make HD Voice calls every day.
The new service has proved popular with new and existing customers since its introduction earlier this year, according to the operator,
The service allows customers to capture and transmit noise across a wider band of frequencies as well as filter out background sounds to ensure better sound quality.
The service is currently only available on Three-to-Three calls at no extra charge, although the operator hopes to roll out on cross-operator calls in the near future.
Three sales and marketing director Marc Allera said: ‘HD Voice really does take voice calling to the next level – as those who are already using it on our award-winning network know.
‘This is the most significant development in voice technology to hit the UK mobile market in more than 20 years and Three’s customers are once again leading the way when it comes to using the latest improvements on a day to day basis.
‘As well as crystal clear voice calls, HD Voice helps reduce background noise and should make shouting down the phone a thing of the past.’
Meanwhile, the operator hopes to add HD capability to most of its devices by the end of Q3 2011. Six of its handsets are already HD Voice-enabled.