What does ttyUSB mean? Sometimes, the embedded microcontroller does not come with a hardware USB interface. While it is possible to use a software-only USB stack, the additional constraints put onto the CPU and the usually small storage size often lead board designers to include a dedicated UART to USB bridge.
Because of a busy weekend I didn't really follow up other than via emails and this still hasn't been resolved. The consistent word from them was that porting a number sometimes takes 24 to 48 hours.. I spoke to a rep by phone today who promised it would be done within 2 to 4 hours.. It wasn't.
You can do one of two things: 1  If you already have a phone number (and phone) with another carrier, you can port your existing number over to Page Plus. There is NO COST (just your first month Plan cost) and most port requests can be completed in just 2 hours or less. But please do NOT cancel your existing phone service!