Hi Fabio, On 11/24/2015 03:45 AM, Fabio wrote: > Hello, > I'm using ofono 1.16 with some patch to add sms manager to the Ublox driver. > > Someone could confirm that ofono close the serial port when it receives > some unexpected/unprintable character before the "AT+CGMS=" reply > from the modem? No, oFono does not close serial ports because of garbage. The syntax will generally discard / ignore AT commands that are not properly formatted. > > If yes, is possible to discard these characters instead of hanging-up > the serial port? Could I have some info about the source I have to patch ? > Feel free to provide AT command logs to help us better understand what is happening. Regards, -Denis