Several companies, including Digicel, are expected to file a motion this week to try and get a Haiti-linked case against them thrown out of a New York court.
The case concerns allegations that levies on Haitian telephone calls and money transfers, which are supposed to fund the impoverished nation's education sector, have instead been wrongly diverted to Haitian politicians.
The companies are accused by Haitian immigrants in the US of conspiring in a fraudulent scheme to collect the fees for the government.
Several current and former politicians from Haiti are also accused of being involved.
The Irish Times reports companies are also accused of price fixing.