Under the REDIALING options, you can set these to whatever you would like. If your ISP gave you an alternate phone number you can dial, put that in the "Alternate number:" section.

"Redial ____ times" is the number of times that the
computer will dial before giving up.

"Time between retries" is the amount of time, in seconds, the computer will wait before dialing again.

When your finished here, click the CONNECTION tab. 
Click here to continue