Log into the OBi at the IP address returned by dialing ***1. Username/Password is admin/admin unless changed on the OBiTALK Web Portal.
Use the navigation tree on the left side to find and set:
System Management -> Auto Provisioning -> ITSP Provisioning -> Method : Disabled
System Management -> Auto Provisioning -> OBiTALK Provisioning -> Method : Disabled
Physical Interfaces -> PHONE Port -> PrimaryLine : PSTN Line
Remember to click Submit at the bottom of any page where changes have been made before leaving that page.
When all changes have been made, click Reboot in upper right corner to make all changes effective.