To get SP1 online, I would strongly suggest setting it up again. Go through the steps to configure GV on SP1. If you want to troubleshoot your existing setup, we will need more information, such as your Service Provider status for SP1 when you go to Status -> System Status -> SP1 Service Status -> Status. It should say Connected, Not Configured, or Backing Off. These messages can help with troubleshooting.
Alternatively, if SP2 is functioning and Connected, you could easily set SP2 as your Primary Line, and you would be instantly good to go. To set SP2 as your Primary Line, go to Physical Interfaces -> PHONE Port -> PrimaryLine.
pc44