The department, however, reviews the calculation and can comment on its accuracy.
Rajan Matthew, director general of the COAI, said the DoT was following the same process by asking the telcos to file their dues.
The telcos together have to fork out over Rs 1.33 trillion, which, apart from the dues on the basis of AGR, will include spectrum user charges.
COAI sources on Wednesday said Bharti and Vodafone Idea were planning to go for a review petition soon.
This comes after discussions with the committee of secretaries, which is of the view that while no relief on the amount can be given, a staggered payment can be offered, for which the telcos have to approach the court.
However, it is discussing a relief package outside the order and it could include a cut in the licence fee to 5 per cent, two years’ moratorium on paying spectrum charges with interest, and referring the goods and services tax refund issue to the GST Council.