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.
1 You can port your number even if you still owe your current carrier money. 2  However, this does not release you from that obligation. 3  While your number is portable, your phone usually isn't; in most cases, you'll need to get a new one.4  You can port your number between wireline and wireless numbers.his means that you can't take advantage of the new customer phone offers you see online (i.e., discounted phone prices) unless you are adding a new line of service. Even if you could, this wouldn't be a number portability issue, as there would be no reason to transfer your number within the same carrier.