ArduinoNG + Bluegiga eval board + Mobile Phone

Greetings !

I have connected my Arduino board to the bluegiga evaluation board (which holds the same bluetooth component as the ArduinoBT) through a serial connection in order to connect to my mobile phone and light up a led whenever somebody is calling me...

So.. I have managed to send messages to the phone, read the answer and test it. But I can't read/detect the "RING" message that my mobile phone is sending to the arduino board when it receives a phone call.

Here is the source code of my application, maybe someone who did the same kind of experiments can help me ?!

Thank you very much in advance,
xavier

char serInString[10];
bool connected = false;
bool phoneConnected = false;

void readSerialString (char *strArray) {
    int i = 0;
    if(Serial.available()) {    
       while (serialAvailable()){            
          strArray[i] = Serial.read();
          i++;
       }
    }      
}

void setup() {
  Serial.begin(9600);
  Serial.println();
  Serial.println("AT");
}

void loop () {
  readSerialString(serInString);
  
  if (!connected && serInString[0] == 79 && serInString[1] == 75){  //answer = OK? (O=79, K=75)
    connected = true;
  }
  
  if (connected && !phoneConnected){
    Serial.println("CALL 00:19:63:1e:0a:01 1103 RFCOMM");
    phoneConnected = true; 
  }
  
  if (connected && phoneConnected){
    readSerialString(serInString);
    if (serInString[0] == 82) digitalWrite(13,HIGH); //check if phone is ringing ?
  }
  
  delay(2000);
}