Getting the contacts/ storing contacts to SIM card

What have you researched so far? Following the link you have given for the shield, about the third line of the description is a reference to the AT Command Set used by the chip.

I just did a couple of quick searches through it and found:

2.2.4 ATD><n> Originate phone call to number in memory

3.2.26 AT+CPBF Find phone book entries

3.2.27 AT+CPBR Read current phone book entries

3.2.28 AT+CPBS Select phone book memory storage

probably a good place to start.

Thanks to @Madivad for the AT command inspiration. I am not very familiar with GSM and Arduino. But anyway, the below worked for me.

Credits to @Madivad and people from the arduino forum.

#include <GSM.h> GSM gsmAccess(true); int sizer = 200; char myNumber[200]; int timeout = 5000; // in milli seconds void setup() { Serial.begin(9600); boolean notConnected = true; Serial.println("Connecting to the GSM network"); while(notConnected){ if(gsmAccess.begin() == GSM_READY) // Note: I do not require PIN # notConnected = false; else { Serial.println("Not connected, trying again"); delay(1000); } } Serial.println("Connected"); theGSM3ShieldV1ModemCore.println("AT+CPBS=\"SM\""); int start1 = millis(); while((millis() - start1) < timeout){ Serial.print(theGSM3ShieldV1ModemCore.theBuffer().read()); } Serial.print("Set to look at SIM card storage"); // search for contact name "test" theGSM3ShieldV1ModemCore.println("AT+CPBF=\"test\""); start1 = 0; start1 = millis(); while((millis() - start1) < timeout && !theGSM3ShieldV1ModemCore.theBuffer().extractSubstring(",\"", "\",", myNumber, sizer)){ Serial.print(theGSM3ShieldV1ModemCore.theBuffer().read()); } Serial.print("Got contact number"); // print out the phone of "test" Serial.println(myNumber); } void loop() { }