(a) A district shall provide 9-1-1 service to each participating jurisdiction through one or a combination of the following methods and features or equivalent state-of-the-art technology:
(1) the transfer method;
(2) the relay method;
(3) the dispatch method;
(4) automatic number identification;
(5) automatic location identification; or
(6) selective routing.
(b) A district shall provide 9-1-1 service using one or both of the following plans:
(1) the district may design, implement, and operate a 9-1-1 system for each participating jurisdiction with the consent of the jurisdiction; or
(2) the district may design, implement, and operate a 9-1-1 system for two or more participating jurisdictions with the consent of each of those jurisdictions if a joint operation would be more economically feasible than separate systems for each jurisdiction.

(c) Under either plan authorized by Subsection (b), the final plans for the particular system must have the approval of each participating jurisdiction covered by the system.
(d) The district shall recommend minimum standards for a 9-1-1 system. A 9-1-1 system in a district under this subchapter must be computerized.
(e) 9-1-1 service is mandatory for each individual telephone subscriber in the district and is not an optional service under any definitions of terms relating to telephone service.
(f) A service supplier involved in providing 9-1-1 service, a manufacturer of equipment used in providing 9-1-1 service, or an officer or employee of a service supplier involved in providing 9-1-1 service is not liable for any claim, damage, or loss arising from the provision of 9-1-1 service unless the act or omission proximately causing the claim, damage, or loss constitutes gross negligence, recklessness, or intentional misconduct.