URGENT HELP REQUIRED!!

[yr]

Hi everyone
i am trying to read new sms messages in my gsm modem using pic microcontrollers
the trouble is that the data im trying to read serially is of the form:

---------------------------------data to be read serially------------------
at+cmgl="REC UNREAD"<CR>
+CMGL:4,"RECUNREAD","+578986513535",,"06/01/18,19:53:49+00",145,2<CR>
this is a test message
-----------------------------------end of data----------------------------

now my code (see below) can only serially input the first line ie 'at+cgml' one. when i try to use 'fgets(msg,modem)' for serially receiving the all important second line '+CGML' one i get nothing. the baud rate is 2400. it appears that maybe the second string passes before the controller can get to the command. but i have tested several modifications of the code and this doesnt seem to be the problem. from this second line i only need the no i.e "+578986513535" and then i need the complete third line i.e (this is a test message).

-----------------------------my code----------------------------------

#include <16F877.h>
#device *=16
#include <stdlib.h>
#include <string.h>
#include <math.h>
#USE DELAY (CLOCK=4000000)
#fuses XT,NOWDT,NOLVP
#use rs232(baud=2400,xmit=pin_d0,rcv=pin_d3,parity=N,stream=modem)//this stream will be used to communicate with the modem
#use rs232(baud=2400,xmit=pin_d1,rcv=pin_c2,parity=N,stream=pc) //this stream will be used to print values on the hyperterminal

char response[10]; //response is the global variable


void smssetup(char *command)
{
do
{

fprintf(modem,"%s",command);

fputc(13,modem);

fgets(response,modem);


}while(strcmp(response,command) != 0); //until we done receive 'at' back from the modem
}


void main()
{
char first[3] = "at";

char second[10] = "at+cfun=1";

char third[10] = "at+cops=0";


char big[25];

char msg[30];

fprintf(pc,"start");

smssetup(first);

smssetup(second);

smssetup(third);

do
{
fprintf(modem,"at+cmgl=");

fputc(34,modem); //this is the ascii value for (")

fprintf(modem,"REC UNREAD"); //so only read unread messages

fputc(34,modem);

fputc(13,modem); //carriage return

fgets(big,modem);

fgets(msg,modem);//<---- this is where i am trying to get the second line

}while(big[8] != 34);
//the above while exits once first line ie (at+cmgl) is not received

fprintf(pc,"the msg is:%s",msg); i always get "the msg is: " <-- so msg=0

}
----------------------------end of code----------------------------------
one might think that since 'msg' has a size of 30 characters so it cant store the second line any way, but sometimes the second line from the modem is---------> ERROR
and even then i this second line into the array 'msg'. i have also tried using other serial input methods such as EX.SISR in the examples folder but to no avail. ne help will be very much appreciated.

regards

[PCM programmer]

Change your #use rs232() statement that receives data from the
modem so that it uses the hardware UART. Example:
#use rs232(baud=2400,xmit=PIN_C6,rcv=PIN_C7,ERRORS,stream=modem)

Then do what I recommended to you in this previous thread:
http://www.ccsinfo.com/forum/viewtopic.php?t=25697