France Télécom-owned Orange is all set to revolutionize its service as it announces to offer high definition calls with wider voice bandwidth available in 2010.

The delay in its launch from 2009 to 2010 as if now is attributed to trials due early in the New Year and a full nationwide roll-out due later in 2010.

Tom Alexander, CEO of Orange UK, says: "Orange is proud to be leading the industry into the next decade by announcing a new standard in voice innovation that will transform the mobile experience for customers in the UK. HD Voice really does inject a level of innovation into mobile phone calls, making it sound as if callers are actually in the same room. Once people have tried it, they won't want to go back".

The HD voice service would introduces a new standard in UK providing a better audio quality as it deal away with the fading improving the signal to noise ratio and also a better services in case only one of the two phones in a conversation is HD-enabled, the company claims.

The customer requires buying the new HD enabled handsets to avail the HD voice service.

Analyst Ben Wood, at telecoms consultants CCS Insight, said Orange would be looking to use its HD voice service to tap into reports of customer frustration with O2. In addition he said that HD is another tool like iPhone to battle against the network quality, performance and coverage.

However, the prices for the HD calls have not been announced and it is unknown whether the company will cost more than standard calls or if it would use its HD service to compete itself from its rivals.