(a) An incumbent local exchange company with one million or more access lines shall file tariffs, and the commission shall determine reasonable rates to be charged by the company for:
(1) call forwarding;
(2) direct inward dialing; and
(3) any other mechanism the commission determines should be used as an interim telecommunications number portability measure by a new entrant.
(b) An incumbent local exchange company with fewer than one million access lines that serves an area in which a certificate of operating authority or a service provider certificate of operating authority has been granted shall, not later than the 60th day after the date of a bona fide request, file tariffs in accordance with Subsection (a).
(c) Not later than the 60th day after the date a company files tariffs under Subsection (b), the commission shall determine reasonable rates in accordance with Subsection (a).
Official text of the Texas Utilities Code as published by the Texas Legislative Council.