RAS Redial - Version 1.02 RAS Redialler will retry Dial Up Networking (DUN) connections and is particulary useful when using high usage DUN Connections. As more and More ISP's use Freephone or Toll Free Numbers it is a chore to have to manually redial the ISP over and over waiting for the "Line Busy" response and then redialling, hoping that you will get a connection RAS Redial will do it for you.