The Office of Utilities Regulation (OUR) has asked Digicel and LIME for more information as it continues its probe into the recent decision of the two companies to block VOIP services on their networks.
VoIP is a technology used for the delivery of voice communications over Internet Protocol (IP) networks.
Digicel and LIME have complained that providers of VoIP services facilitate calls that bypass their networks without paying fees and taxes.
However, the OUR is asking the companies to provide by month end, data showing the nature of the alleged bypass of their networks by VoIP providers and its impact.
The regulator says chief among its concerns is whether VoIP providers are engaging in bypass operations.
The OUR asked for the information following meetings with the two companies, representatives of the Consumer Affairs Commission and other persons representing consumer interests.
The regulator says customers have complained that the block is unfair as the telecommunication companies are restricting use of their internet service.
It says there are also concerns that such action sets a bad precedent and may be applied in the future to other services.