It will be much cheaper to call across mobile networks if the Office of Utilities Regulation (OUR) institutes an interim termination charge of J$5 on mobile networks.
Government calculations contained in a classified document obtained by The Gleaner suggest that it would cost, on average, $8 per minute to call across networks with a mobile phone.
On the contrary, it is to cost, on average, $11 per minute to place calls to mobile phones on the same network.
The lowering of the prices directly relates to the passage of the interim Telecommunications Act last month which allows the OUR to significantly reduce termination rates.
Government sources say the level of reduction would also depend on whether the carriers pass on all of the reduced cost to the consumer.
Last Thursday, Finance Minister Dr Peter Phillips announced the imposition of J30 cents per minute on domestic calls and US7.5 cents on international calls.