Can we activate a SIM card using the SIM module(SIMCOM). If can what is the procedure to do that. I hav tried the following and ended with no result. When I use a new SIMcard(AirTel) in SIMCOM module(SIM808) initially it shows
Thank you for choosing Airtel! We are setting up your services please wait.
after few moments it shows
We are unable to process your request. Please retry later.
and when I give a command ‘+CGREG?’, it shows that the ‘Device is registered and roaming’ but when attempted to send a SMS or make a voice call it shows that ‘Device is not registered and MT is not currently searching a new operator to register to’. How can I handle this. Kindly help me.