Burns Ind. Code Ann. § 24-4.7-2-7.5
§ 24-4.7-2-7.5. Place of Primary Use
"Place of primary use," with respect to a telephone subscriber, means the street address representative of where the subscriber's use of the telephone service primarily occurs, which must be:
(1) The residential street address of the subscriber or, in the case of a subscriber of interconnected VOIP service, the subscriber's registered location (as defined in 47 CFR 9.3); and
(2) In the case of mobile telecommunications services (as defined in IC 6-8.1-15-7), within the licensed service area of the home service provider, as set forth in IC 6-8.1-15-8.