Extended usage of TV cameras will be in place for the Champions Trophy tournament in Sri Lanka in September, the ICC confirmed on Monday.

Consultation will be optional but when a third umpire is contacted, he will be allowed only two replays before passing information to the on-field officials via radio headsets.

The new system would mean the red and green lights would still be used for 'line' decisions - stumpings and run outs - with unlimited replays.

But it gives umpires an option to chat to the third official to ascertain whether, for example, a ball pitched outside leg stump on an lbw shout.

There has been strong feeling in some quarters that more incidents should go to the TV official.

On occasions, a third umpire has been forced to rule a catch good because it has carried - even if he can see that the ball came off pad rather than bat or glove.

The new ICC panel of elite umpires and match referees will discuss the recommendation at a four-day workshop near Cape Town which begins on Thursday.

"Technology is an emotive issue, with persuasive voices on both sides of the debate," ICC chief executive officer Malcolm Speed said.

"By agreeing to a limited but high profile trial, we will be better placed to judge if greater use of technology is the way to go in the long term."

The move was also endorsed by former Indian captain Sunil Gavaskar, who is on the ICC sub-committee that wants to bring in the new technology.

"International umpires do a difficult job extremely well. They already make a very high degree of correct decisions, for which they receive too little credit," Gavaskar said.

"The ICC wants to support umpires and if this experiment proves that technology can make that contribution it will be considered for further use in the international game."