Texas Utilities Code - UTIL § 56.103. Telecommunications Relay Access Service Requirements

(1) switching and transmission of the call;

(2) live or automated verbal and print translations of communications between a person with an impairment of hearing or speech who uses a telecommunications device for the deaf or a similar automated device and a person who does not have such equipment; and

(3) other service enhancements proposed by the carrier and approved by the commission.