(a) This section does not apply to a consumer telephone call made:
(1) in response to the express request of the consumer;
(2) primarily in connection with an existing debt or contract for which payment or performance has not been completed at the time of the call; or
(3) to a consumer with whom the telephone solicitor has a prior or existing business relationship.
(b) A telephone solicitor may not make a consumer telephone call to a consumer unless:
(1) the telephone solicitor, immediately after making contact with the consumer to whom the call is made, identifies:
(A) himself or herself by name;
(B) the business on whose behalf the telephone solicitor is calling; and
(C) the purpose of the call;
(2) the telephone solicitor makes the call after 12 noon and before 9 p.m. on a Sunday or after 9 a.m. and before 9 p.m. on a weekday or a Saturday; and
(3) for those calls in which an automated dial announcing device is used, the device disconnects the consumer's telephone line within the period specified by Section 55.126, Utilities Code, after either the telephone solicitor or the consumer terminates the call.