Apparently when Crump wrote the script for Dee Dee he didn’t have all of the police reports. In her interview she said the earphones fell off of TM and she heard the grass. Police reports say the earphones were INSIDE the hoodie pocket with the skittles, lighter and the pin/button TM was wearing when George described him to the non-emergency Operator.
The phone records have her on the phone, just the same, somewhere around that time. Crump's narrative requires DeeDee to be on the phone when Martin asks Zimmerman, "Are you following me?" with a bumping or whatever happening a few seconds later - maybe 10, at the outside.
Assuming Martin prepared for the confrontation by taking out the earphones and stripping identifying details (the photo pin), it is still possible for DeeDee to be involved in a telephone dialog with Martin when he asks "Are you following me?"
The phone works if the headphones are unplugged. DeeDee would have a hard time hearing if the earphones were plugged in to the phone and the microphone is inside the hoodie. The phone was found loose, yes? I wonder if Martin was using it without earphones when he started the fight.