Problem with serial communication with AT Command responce

Hello, I have successfully sent AT Command to 3G Shield via Arduino UNO board. But how can i get modem returned response? Please instruct me. Thanks

Call Sketch

void setup()
{

Serial.begin(115200);

}

void loop()
{
Serial.print("ATD0711543845;\r");
delay(10000);

}

But how can i get modem returned response?

Serial.available() and Serial.read() come to mind.