Help Arduino Coding

hi how to retrieve phone numbers in SIM and send an alert to that numbers at once. i'm using this lib from GSM shield to write the numbers in SIM Card. then if i txt like this Add +1112344567 it will register to the SIM

char Phonebook[160];
x=phonebook;
int m;

GetSMS(GetSMS(position, n, smsbuffer,16){
for(m=0; m<4; m++){

}
}


SendSMS(x);