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.
Step 3: After receiving the phone, I activated it and called the AT&T porting center at (888) 898-7685 and arranged for my landline number to port to the GoPhone. Because this was coming from a landline, the process took about 3 business days to transfer.Step 4: I purchased $15 in usage for the GoPhone.tep 3: After receiving the phone, I activated it and called the AT&T porting center at (888) 898-7685 and arranged for my landline number to port to the GoPhone. Because this was coming from a landline, the process took about 3 business days to transfer.