Riverside County prosecutors this week declined to file charges against Lohan over the alleged scuffle at the famed Betty Ford clinic in which she allegedly hit Dawn Holland with a telephone.
A source close to the actress said Lohan believes Holland sounds "rude" and "aggressive" in the 911 call. TMZ said Saturday Holland also makes a reference to suing the actress on the recording.
Lohan still has a theft case pending in Los Angeles County. She has told acquaintances the surveillance video of the incident backs up her contention she did not intend to steal a necklace when she walked out of the store wearing it.