The TOT labor union has asked the Council for Democratic Reform under Constitutional Monarchy (CDRM) to investigate whether the national telecom regulator is treating state telecom agencies unfairly.
In a statement, the union accused the National Telecommunications Commission (NTC) of issuing regulations that encouraged private telecom concessionaires to terminate their contracts with TOT.
It added that the NTC breached telecom laws by allowing direct interconnection between telecom operators, while Article 25 of the Telecom Business Act states that only NTC licensees can directly connect with one another.
NTC chairman Choochart Promphrasid declined to comment on the accusation, saying that people would soon know the truth.
The NTC is implementing an interconnection charge regime which requires all telecom operators to share voice revenue between the two networks involved in the calls.
As a result, telecom operators are in talks with each other to finalize the interconnection rates they will charge each other.
An industry source, who requested anonymity, said that the TOT union moved against the NTC because the interconnection regime would encourage CAT's private cellular concessionaires to stop paying access charges to TOT, causing it to lose revenue.