Can't receive AT+STKTR response

Hello,

Problem:

I send AT+STKTR command, got return "OK", "OK", "OK", so looks like working. When loop working fine, try to call and gsm.read() return my call, but if I try to send request to my SIM new AT+STKTR I get nothing. Why? Should get incoming bits or something like that. How I can get AT+STKTR incoming requests?

Code:

void setup()
{
  //Serial connection.
  Serial.begin(115200);
  Serial.println("SIM tool kit.");
  //Start configuration of shield with baudrate.
  //For http uses is raccomanded to use 4800 or slower.
  if (gsm.begin(4800)) {
    Serial.println("\nstatus=READY");
    started = true;
  }
  else Serial.println("\nstatus=IDLE");

  if (started) {
    Serial.println("SIM is ready!");
  }
};

void loop()
{
    delay(3000); 
    gsm.WhileSimpleRead();
};

Solved

Solved

How do you solved that please...? I am have the same problem!