Áine Cain and Kevin Greenlee, the journalist-lawyer couple behind
The Murder Sheet podcast, told The U.S. Sun the phone could play a central role in Allen's trial, which is slated to begin on October 14.
Describing testimony about the phone so far as "confusing," Greenlee said the data debate will come down to a "battle of the witnesses."
Cain, meanwhile, described the defense's version of events as farfetched.
She said, "What the defense is contending sort of speaks to someone turning the phone back on hours after the girls were abducted.
"But what was interesting was Cecil mentioning there's a new report coming out because phone data extraction techniques improve all the time, so you can keep going back to check for more information.
"He's working on that report now, so I imagine the difference is going to be that the defense will claim the phone was turned back on, and that's the only way the messages could've come through, and the prosecution will be saying it wasn't turned on, and this can happen for several reasons.
"I can't speak for any side in this, but it's probably going to come down to whose expert is more convincing."