Trying to use FX30S modem for GSM Data exchange and it fails.
Can’t use ATD without ‘;’ at the end of the command. If doing so having NO CARRIER
Using ‘;’ character at the end , the connexion is established but can’t use it to exchange data (still in command mode?). ATO
Trying to call the FX30S modem from a RTC modem, the ATD return BUSY .
Somebody can explain me how to do or what I am doing wrong.