Tex. Utilities Code § 55.101: DEFINITIONS.

In this subchapter:

(1) "Caller identification information" means any information that may be used to identify the specific originating number or originating location of a wire or electronic communication transmitted by a telephone, including the telephone listing number or the name of the customer from whose telephone a telephone number is dialed.

(2) "Caller identification service" means a service that provides caller identification information to a device that can display the information.

(3) "Per-call blocking" means a telecommunications service that prevents caller identification information from being transmitted to a called party on an individual call when the calling party affirmatively acts to prevent the transmission.

(4) "Per-line blocking" means a telecommunications service that prevents caller identification information from being transmitted to a called party on each call unless the calling party affirmatively acts to permit the transmission.

Acts 1997, 75th Leg., ch. 166, Sec. 1, eff. Sept. 1, 1997.