The Federal Circuit illustrated its flexibility last month by conducting an oral argument with one of the parties participating by telephone. It appeared to be a rare circumstance. The oral argument was scheduled for March 7th and a snowstorm along the East Coast caused many flights to be canceled. So, in this particular circumstance the appellant was allowed to argue by telephone. The USPTO appeared in court as the appellee.
You can listen to the oral argument here: [Listen].
You can review the Rule 36 Judgment here: [Link].