Help us for our SMS notification system..

There are many articles that can help you, like Send and Read SMS through a GSM Modem using AT Commands[^].
 
But if you are using GSMComm then why not look at the documentation for that library?
Like "How-to" etc.
 
Look at the website http://www.scampers.org/steve/sms/libraries.htm[^]
 
There is nothing fancy about sending and receiving SMS. The tricky part is the PDU messages, that can contains images, tones etc.
 
I can recommend this create library. http://twit88.com/platform/[^]