MTNL had issued a circular on January 31 to all the operators over implementation of Interconnection Usage Charges in the MTNL network.
BSNL has raised objection and has asked MTNL to modify the circular in accordance with TRAI's regulations.
"On examining the mentioned circular, it has been observed that MTNL is collecting only transit charges for all intra circle and inter circle calls originating from basic and cellular service providers and the applicable ADC on these calls is not being collected by MTNL," BSNL said in a letter to MTNL.
"This is not in conformity with TRAI's Telecom Interconnection Charges Regulation of October 29 2003," BSNL said.
The new IUC of TRAI, which came into effect from February 1, 2005, is an amendment of previous IUC regulations of TRAI and as per this new regulation BSNL says in the letter "ADC is to be received only by BSNL. You are therefore requested to modify your implementation of IUC regulation in MTNL network circular accordingly for making provision for collecting applicable ADC and pass on the same to BSNL in compliance with regulation."
According to TRAI's regulation, says BSNL, the carrier would collect the applicable amounts for carriage and termination charge from the originating service provider for various types of calls.
The carrier would pass on the termination charge to the terminating service provider.
In cases where the ADC is to be collected by the terminating network or by BSNL the ADC amount shall be passed on by the carrier to the relevant service provider.
Last month MTNL had also challenged the ADC regime of TRAI in TDSAT, which had refused to grant stay and as a result new ADC regime came into effect from February 1.
Some of the cellular operators have even lowered long distance tariffs, both STD and ISD, due to new ADC regime.