how to turn on a stepper motor using gsm modem

[atoivan]

Hi to all...
I am doing a project in which i will be interfacing a gsm modem , a keypad , and a stepper motor with PIC microcontroller(16f877a)
i should be able to send a predefined sms to the gsm modem so that the stepper motor will turn.

i am using MikroC IDE
my cell phone as the modem
and Proteus 8 Professional

i do not have any problem with the keypad i have the code and it working fine.

my problem is which AT command am i to use and how do i save the predefined string in the modem
so the stepper motor can turn NO

NB:
i keep having this error any time i compile my project

diagnostics: 0 127 All files Compiled in 156 ms
error: 4 355 Redefinition of 'ATdis [GSM.c] '. 'ATdis' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 7 355 Redefinition of 'atm1 [GSM.c] '. 'atm1' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 8 355 Redefinition of 'atm2 [GSM.c] '. 'atm2' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 9 355 Redefinition of 'atm3 [GSM.c] '. 'atm3' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 10 355 Redefinition of 'smsNun [GSM.c] '. 'smsNun' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 13 355 Redefinition of 'ok_gsm [GSM.c] '. 'ok_gsm' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 14 355 Redefinition of 'RELAY_OK [GSM.c] '. 'RELAY_OK' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 16 355 Redefinition of 'parse_type [GSM.c] '. 'parse_type' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 17 355 Redefinition of 'relay_no [GSM.c] '. 'relay_no' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 18 355 Redefinition of 'relay [GSM.c] '. 'relay' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 20 355 Redefinition of 'phone_number [GSM.c] '. 'phone_number' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 22 355 Redefinition of 'gsm_state [GSM.c] '. 'gsm_state' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 23 355 Redefinition of 'response_rcvd [GSM.c] '. 'response_rcvd' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 24 355 Redefinition of 'responseID [GSM.c] '. 'responseID' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 24 355 Redefinition of 'response [GSM.c] '. 'response' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 0 355 Redefinition of '?ICS_smsNun [GSM.c] '. '?ICS_smsNun' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 0 355 Redefinition of '?ICS_gsm_state [GSM.c] '. '?ICS_gsm_state' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 0 355 Redefinition of '?ICS_response_rcvd [GSM.c] '. '?ICS_response_rcvd' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 0 355 Redefinition of '?ICS_responseID [GSM.c] '. '?ICS_responseID' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 0 355 Redefinition of '?ICS_response [GSM.c] '. '?ICS_response' already defined in 'GSM_and_Keypad_lock.c' GSM.c
error: 0 102 Finished (with errors): 29 May 2014, 03:38:51 GSM_and_Keypad_lock.mcppi