IF ANY COMMAND BELOW DOES NOT WORK CORRECTLY ADD A Semicolon ‘ ; ‘
In order to establish the PPP connection:
AT+CGDCONT? This should respond with the context you are on. This means you are ready to attach/connect.
Keep Reading : Updated GPS & Battery commands for Sim808 / FONA Shield. Also works for LoNet Sim808 Serial Communication with SMS Modem (FONA) GPS RESPONSE CODE ORDER SMS on PI