Modify GSM module code to receive SMS and do actions accordingly

I made some adjustments and now the device suppose to be programmed for main 8 functions with SMS and keypad. I don't know if it works yet because I don't have my arduino in hand now. But my concern is the part where I make my char array sms_text = sms_content <-- which is string. Can I do something like that? Maybe there is another way to do this?

Thanks!

SMSSender.ino (5.5 KB)