P.C. 42.062 -
(b) An individual commits an offense if the individual recklessly renders unusable a telephone that would otherwise be used by another individual to place an emergency telephone call or to request assistance in an emergency from a law enforcement agency, medical facility, or other agency or entity the primary purpose of which is to provide for the safety of individuals.
(c) An offense under this section is a Class A misdemeanor, except that the offense is a state jail felony if the actor has previously been convicted under this section.
(d) In this section, "emergency" means a condition or circumstance in which any individual is or is reasonably believed by the individual making a telephone call to be in fear of imminent assault or in which property is or is reasonably believed by the individual making the telephone call to be in imminent danger of damage or destruction.