In Indiana, the recording or acquiring of the contents of a telephonic or telegraphic communication by someone who is neither the sender nor the receiver is a felony and can be the basis for civil liability as well. Ind. Code Ann. § 35-33.5-1-5.
Civil liability may require the payment of actual damages, $100 per day for each day of violation or $1,000 whichever is greater and punitive damages, court costs and attorney fees. Ind. Code Ann. § 35-33.5-5-4.