All Mobile codes

All phone have some secret codes which is hidden from normal people.
Here we see all the codes and use them for our daily use. Just try the codes and have fun with your phone and with your friends.

CODE	FUNCTION PERFORMED
*3370#	This Nokia code activates increased Full Rate Codec (EFR) - Your Nokia mobile phone uses the most effective sound quality however s peak time is reduced my approx. 5%
#3370#	Deactivate Enhanced Full Rate Codec (EFR)