You have to interface a GSM

[AJISH ALFRED]

You have to interface a GSM module with the 89c51

http://www.engineersgarage.com/microcontroller/8051projects/interfacing-gsm-8051-microcontroller-circuit-code

 

and also need to interface the eeprom ic

http://www.engineersgarage.com/microcontroller/8051projects/interface-serial-eeprom-24c02-AT89C51-circuit

 

Hope this helps.