La. R.S. 45:1166.3

No long-distance service provider shall charge a customer a rate for operator-assisted collect calls made from penal institutions in this state in excess of the rate charged for operator-assisted collect calls made from the municipality in which the penal institution is located or the nearest municipality to the penal institution or the parish seat of the parish in which the penal institution is located, whichever is closer. In no case shall the rate for an operator-assisted collect call made from a penal institution in this state exceed the rate caps established by the Louisiana Public Service Commission for such calls.