sending sms to multiple contacts using SIM900A

my code is working now..
But the next problem which I am getting is
*** FATAL ERROR L250: CODE SIZE LIMIT IN RESTRICTED VERSION EXCEEDED
MODULE: C:\KEIL_V5\C51\LIB\C51S.LIB (-----)
LIMIT: 0800H BYTES
Target not created.
Build Time Elapsed: 00:00:01

I am sing keil uvision 4 software..
what should I do.

plz help.

Looks like you are using a demo version of Keil.
Either find a way to cut down your code, or get hold of the full version.

Another option is to move to a free compiler such as
http://sdcc.sourceforge.net

Is the steps of programmming of keil and sdcc same?...
I searched on google for getting started with sdcc compiler but i didnt got any tutorial on it...
plz help

SDCC is a compiler, it turns text (source code) into bytes to load into the 8051.
Keil is a package, it helps you compose the text , and has a built in compiler
to turn that text into bytes.

The Keil compiler needs some of the text (source code) to be written
in a slightly different way to SDCC .

The meaning is the same, but the words vary.
Fortunately it is not too hard to re-write these bits.

It will not be difficult to modify your code for SDCC.

As Keil is a package, it supplies some built in functions, such as uart_string()
SDCC ( and everyone else) uses printf() instead.
You will need to change that.
I have attached a sample program that SDCC will compile for the 8051.

I use CODE::BLOCKS as an editor for SDCC, but there are others.
http://www.codeblocks.org

Thanks a lot..
I will try with SDCC, or else I will get the full version of keil

I should say that setting up CODE::BLOCKS (or any similar editor)
involves setting up packages from more than one site.
Once done though, you edit, compile and re-edit , as in Keil.