The decision review system is set to be introduced to international cricket, but confusion over its full implementation still remains.

The system will make its international debut in New Zealand's opening Test against Pakistan in Dunedin, despite its use originally being intended for all Tests after October 1.

It now seems it will feature in some series but not others after India refused to use it against Sri Lanka in Ahmedabad and England's series in South Africa is not currently scheduled to apply it.

The Board of Control for Cricket in India claimed they had reached the decision not to employ the system following discussion with their players.

Resistance

Resistance to the system contrasts the attitude of countries that embraced it following initial trials earlier this year, with only England of the 10 full member countries rejecting its introduction at an International Cricket Council board meeting in June.

The system, which affords two unsuccessful appeals per side per innings, is also scheduled to be used for Australia's opening Test against West Indies.

"We are excited about the introduction of this ground-breaking system," said

David Richardson, the ICC's general manager of cricket.

"With the improvement of technology, umpires' mistakes are exposed and scrutinised like never before. This system will help alleviate the problems created when mistakes, which appear obvious on replays, are made.

"The system allows television technology to be used in a way that will not result in too many delays, will not de-skill the umpires and will take some pressure off the umpires.

"The fact is that trials showed that the system improved player behaviour and led to a significant reduction in the number of umpiring errors."