“[t]he voice on the cell phone was an older male, deep, not like a kid, and it was not [Jay]”

According to this link (http://viewfromll2.com/2014/11/23/serial-a-comparison-of-adnans-cell-phone-records-and-the-witness-statements-provided-by-adnan-jay-jenn-and-cathy/), Jenn testified in court that the call she made to Jay when he was supposedly helping Adnan bury Hae's body was answered by somebody other than Jay. According to her, “[t]he voice on the cell phone was an older male, deep, not like a kid, and it was not [Jay]”. However, before, in her taped interview with the police, she comes right out and says that it was Adnan who answered the phone. Why would she change her story, especially adding that the voice was "not like a kid"? If she wanted to help the prosecution's story by implicating Adnan, why would she be so ambiguous about the identity of the person who answered? Does this stand out to anybody else? To me, especially after reading the entirety of the link I provided above, it casts much more suspicion upon Jay being involved, possibly with a third party, and framing Adnan. Jenn describing the voice as "an older male, deep" sent chills up my spine. Does anyone know where I may be able to obtain the transcripts of the trial testimony, so I can verify this for myself?