Tennessee Code Title 47. Commercial Instruments and Transactions § 47-18-1504

(a) It is unlawful for any person to connect any ADAD equipment to any telephone line in this state for the purpose of making telephone calls to persons in this state through the use of ADAD equipment unless a permit has been issued for such ADAD equipment by the commission.

(b) Any person desiring to use ADAD equipment in this state shall make application for a permit to the commission on forms prescribed by the commission, and shall pay a fee as prescribed by the commission for such permit. Permits shall be renewed biennially as prescribed by the commission and upon payment of a renewal fee. The fees charged shall cover the administrative cost for the issuance of such permits.

(c) Permits shall be subject to suspension or revocation by the commission for any violation of this part.