Nokia 1100 code for restarting/rebooting is needed

[shohag_mobile]

I am a NOKIA 1100 Mobile hand set user. IMEI no is 355384001839405. I want to know the CODE for activating and deactivating ENHANCED FULL RATE (EFR) for NOKIA 1100 Mobile hand set. These code for Nokia 3310 is respectively *3370# and #3370#, but these codes do not act in nokia 1100. I need such CODE for 1100. Please help me by providing these CODEs for NOKIA 1100.

Regards,
-Shohag (shohag_mobile@yahoo.com)