TRAI has released a fresh consultation paper to review the ADC and interconnection usage charges regime. The paper comes just two months after the new ADC regime was put in place. The paper invites suggestions on issues like the admissibility and extent of ADC. It is considering the viability of operators shifting to a new regime where ADC is levied as a percentage of their adjusted gross revenue. Even under a revenue share system, the paper explores the possibility of various slabs for long distance calls and fixed monthly charges for urban lines. The paper asks operators to suggest whether ADC should be calculated only on the basis of rural fixed lines and whether it is admissible to companies other than BSNL.