Rob is identified several times before and during the trial as the jury foreman. The foreman is only elected after the jury is in deliberations.
During the beginning of the deliberations, you can see that Patsy Kelly has her lines on three sheets of paper in front of her. She can be seen looking down at them even as she's delivering her lines.
When Rob first answers the phone he says, "Hello, Miss Hendry". Her name is "Hendricks".