47 C.F.R. § 64.6080
Per-Call, Per-Connection or Per-Communication Charges
A Provider must not impose a Per-Call, Per-Connection, or Per-Communication Charge on a Consumer for any Incarcerated People's Communications Services communication.
A Provider must not impose a Per-Call, Per-Connection, or Per-Communication Charge on a Consumer for any Incarcerated People's Communications Services communication.