Arduino GSM Shield 2 SMS Error

Hardware Arduino GSM Shield
1

Hi,
I bought the Arduino GSM Shield 2 and I am trying to send an SMS.

I am using:

  • Arduino Mega ( I did the necessary changes for Mega)
  • standard GSM library ( 1.0.6)
  • sim card (in Austria) which has been checked with a phone

What the program does:

  • connect to gsm and turn on a led when connected ( this part is working)
  • send an SMS when I push a button ( this part does not work)

The code is pretty close to the samples provided by arduino web site.

#include <GSM.h>
#define PINNUMBER "XXXX"
*const int buttonPin = 4; *
*const int ledPin = 12; *
*const int ledPinBoard = 13; *
*int buttonState = 0; *
GSM gsmAccess(true);
GSM_SMS sms;
boolean notConnected = true;
boolean doSend = false;
char remoteNumber[20]= "XXXXXXXXXX";
void setup() {

  • Serial.begin(9600); *
  • pinMode(ledPin, OUTPUT);*
  • pinMode(ledPinBoard, OUTPUT);*
  • pinMode(buttonPin, INPUT);*
  • digitalWrite(ledPinBoard, LOW);*
    }
    void loop() {
  • buttonState = digitalRead(buttonPin);*
  • if (buttonState == HIGH) {*
  • doSend = true;*
  • }*
  • if(notConnected)*
  • {*
  • if(gsmAccess.begin(PINNUMBER)==GSM_READY) {*
  • notConnected = false;*
  • Serial.println("Connected");*
  • digitalWrite(ledPin, HIGH);*
  • } else {*
  • digitalWrite(ledPin, LOW);*
  • }*
  • } else {*
  • digitalWrite(ledPin, HIGH);*
  • }*
  • if (doSend) {*
  • doSend=false;*
  • sendSMS(); *
  • }*
  • delay(1000);*
    }
    void sendSMS(){
  • char txtMsg[200]="Test";*
  • sms.beginSMS(remoteNumber);*
  • sms.print(txtMsg);*
  • sms.endSMS();*
    }

Th Error which I get after sms.endSMS(); is :

AT+CMGS="XXXXXXXXXX"%13%
58 62>%13%%10%>
Test%26%%13%
58 81>%13%%10%> %13%%10%+CMS ERROR: 159%13%%10%

Error 159 means "Unspecified TP-DCS error" but that is pretty much all that I found about it ( the name).
Am I missing something ?
Is there maybe a workaround for it ?

Thanks !

2

Update:
Using another SIM from another GSM provider solved the problem.(no code or hardware changes).

3

What provider were you using?