Catalyst Redial Attempts and time between calls (Intersession Delay)

How many times will the Catalyst call a destination before moving on and calling the next destination? How much time is there between calls?

Redial Attempts - This parameter is found on the Session Parameters dialog and sets the number of re-tries if a busy signal is encountered on the first attempt. 

Intersession Delay - This parameter is also found on the Session Parameters dialog, and sets the amount of time in minutes between outgoing calls.