Caller ID authentication.

Specifies that the attorney general's authority to bring a civil action to enforce the federal Truth in Caller ID Act of 2009 (Act) includes the attorney general's authority to bring a civil action to seek damages and injunctive relief under the broader statute of which the Act is a part. Provides that not later than December 31, 2020, a provider that offers voice telephony service through an interconnected VOIP service to subscribers in Indiana shall implement: (1) the SHAKEN/STIR framework for verifying and authenticating caller identification information for calls made through an interconnected VOIP service; or (2) any alternative technology that provides comparable or superior functionality in verifying and authenticating caller identification information; consistent with certain actions by the Federal Communications Commission (FCC) in connection with, or in furtherance of, a June 6, 2019, FCC declaratory ruling. Provides that the bill's requirement does not apply to: (1) a rural telephone cooperative; or (2) a provider that: (A) serves only Indiana subscribers; and (B) has not more than 5,000 subscribers. Specifies that the bill's requirement does not: (1) require a provider to offer or implement call blocking; or (2) restrict or prohibit a provider from offering or implementing call blocking, consistent with the FCC declaratory ruling. Authorizes the attorney general to adopt rules to implement these provisions.