GSM SIM7600G not responding

[cauf61]

Hello I have build a microwave burglar alarm with a Nano and the 7600G gsm module. Is there a way i can check the proper function off the 7600 as it is not responding. The detection part works fine.
I can see on my oscillosscope that data is going from the nanoTX to the 7600 RX pin when a call is made. That's all. On the RX side i see no signal.
Here is my code. PS The many delays are for checking the serial messages

#include <SoftwareSerial.h>

//Create software serial object to communicate with gsm  module
SoftwareSerial mySerial(/*rx =*/2, /*tx =*/3);  // Define virtual serial port, Rx: 2, Tx: 3

#define trigPin 9
#define sirenePin 7
int input_state = LOW;

void setup() {

  pinMode(sirenePin, OUTPUT);
  pinMode(trigPin, INPUT);
  digitalWrite(sirenePin, LOW);

  mySerial.begin(9600);  // Initialize virtual serial port
  Serial.begin(9600);    // Initialize Arduino default serial port

  mySerial.println("AT");
  Serial.println("serial initialize");
   delay(2000); 


  mySerial.println("AT+IPREX=9600");  // set the sim7600G to 9600 baud also
  Serial.println("set 9600 baud");
  delay(2000);
}

void loop() {


  input_state = digitalRead(trigPin);

  if (input_state == 1) {
    Serial.println("Alarm");
    Make_call();
   
 
    delay(1000);
  } else {
    Serial.println("Camionette ok");
  }
}
//update Serial function
void updateSerial() {

  while (Serial.available()) {
    mySerial.write(Serial.read());  //Forward what Serial received to Software Serial Port
  }
  while (mySerial.available()) {
    Serial.write(mySerial.read());  //Forward what Software Serial received to Serial Port
  }
}

//on input alert
void Make_call() {
  mySerial.println("ATD++32***********");  //
  updateSerial();
  digitalWrite(sirenePin, HIGH);  // sirene AAN
  Serial.println("make call");
  delay(20000);              // wait for 20 seconds...
  mySerial.println("ATH");  //hang up
  Serial.println("hang up");
  updateSerial();

  delay(20000);  // wait for 20 seconds...
  digitalWrite(sirenePin, LOW);
  Serial.println("sirene uit");
  delay(500); 
}