47 CFR 64.6020 – Ancillary Service Charges
(a) No Provider of interstate or international Inmate Calling Services shall charge an Ancillary Service Charge other than those permitted charges listed in § 64.6000(a).
(b) No Provider shall charge a rate for a permitted Ancillary Service Charge in excess of:
(1) For Automated Payment Fees—$3.00 per use;
(2) For Single-Call and Related Services—when the transaction is paid for through an automated payment system, $3.00 per transaction, plus the effective, per-minute rate; or when the transaction is paid via a live agent, $5.95 per transaction, plus the effective, per-minute rate;
(3) For Live Agent Fee—$5.95 per use;
(4) For Paper Bill/Statement Fee—$2.00 per use;
(5) For Third-Party Financial Transaction Fees—when the transaction is paid through an automated payment system, $3.00 per transaction; or when the transaction is paid via a live agent, $5.95 per transaction.