GSM Shield - AT Commands - can't read SMS

Hi guys! i hope you can help me!!

I have a Arduino UNO and the Arduino GSM Shield. I want to SEND and READ a SMS with AT Commands ( I can not use the GSM library - i have a conflict with the WIRE.h library ).

So the sending of a SMS is not a problem. That works fine but i can't read SMS.

For example i want to check the List with -> AT+CMGL="ALL" the M10 Module starts to answer but i get only the half of the information what i could normal get. I tried different commands but i have no success.

It seems that i have a problem with my SoftSerial Port? Or am i wrong!! Please HELP!

Here is my Code:

#include <SoftwareSerial.h>

SoftwareSerial GSM(2,3);

String Command, Respond;

void setup()
{
Serial.begin(9600);
GSM.begin(9600);

}

void loop()
{
// From Serial Monitor - for the AT - Commands
if (Serial.available())
{
Command = "";
while (Serial.available())
{
Command = Serial.readString();
}
GSM.println(Command);
}

// Respond from the GSM Shield
if (GSM.available() > 0)
{
Respond = "";
while(GSM.available() > 0)
{
Respond = GSM.readString();
}
Serial.print("\nData: ");
Serial.print(Respond);
}

delay(1000);
}

And that is what i get from the Shield:

Data: AT+CMGL="ALL"

+CMGL: 1,"REC READ","+43xxxxxxxx80","","2015/09 <---hier is something missing?? OR not?
Data: AT+CMGR=1

+CMGR: "REC READ","+43xxxxxxxx80","","2015/09/20 19 <---hier is something missing?? OR not?
Data: AT+CSDH?

+CSDH: 0

OK

Data: AT+CSMP?

+CSMP: 17,71,0,0

OK

Data: AT+CSMP=17,167,0,0

OK

Data: AT+CMGL="ALL"

+CMGL: 1,"REC READ","+436606121980","","2015/ <---hier is something missing?? OR not?
Data: AT+CSMP=17,167,0,8

OK

Data: AT+CMGF=1

OK

Data: AT+CMGL="ALL"

+CMGL: 1,"REC READ","+436606121980","","2015 <---hier is something missing?? OR not?

/// see at: AT+CMGL="ALL" --->> it seems that not the hole info will transmit to the Serial Monitor

hi,

to get the GSM shield working there are some conditions to be fulfilled. This GSM forum contains a lot of postings how to control the shield with AT commands.

For me it is not clear how the pinning between GSM shield and Uno looks like and how the commands to the shield are generated in your example.
In your example I am missing the initialisation with the command AT.

What type of SIM card do you use?
I am asking this because I have problems perhaps resulting from the SIM card.

SupArdu