After Amber hangs up after trying to call House, the angle changes and suddenly her phone is nowhere to be seen.
Dr. Foreman says that he thinks the patient has "just a heatstroke," but a real doctor would treat such a condition as life-threatening, because medical attention is needed to prevent permanent damage to the brain and other organs, if not death.
Amber calls House and he hangs up on her. Her phone makes a beeping sound as she presses the button. Her phone is an Iphone, which doesn't beep like that.