Rapid Transfer is a process allowing you to quickly and easily move between participating ADSL1 broadband providers, without needing to reconnect your ADSL broadband service. Switching to Netspace ADSL broadband takes between 3 to 5 working days, usually with a downtime of only 2 to 6 hours.
A similar process is available for moving to ADSL2+ plans see What is Fast Churn.