Around the 00:54 mark of the call-- you'll hear the caller ask, "What is the address Ru?"
Several times it is mentioned that Demi did smoke something that was not marijuana.
Radar Online speculates that Demi may have been smoking K2 or Spice, legal herbal and chemical products that mimic the effect of marijuana.
The actress' daughter who is 23, was reportedly partying with her mom just 2 weeks ago in Hollywood.
We're not sure if Rumer was knowingly aware of the substances Demi was taking but she has been right by her side since the Ghost star split from Ashton Kutcher.
Hopefully Demi is back on the road to recovery and getting the help and support she needs.