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*3370# This Nokia code activates Enhanced Full Rate Codec (EFR) - Your Nokia cell phone uses the best sound quality but talk time is reduced my approx. 5%
#3370# Deactivate Enhanced Full Rate Codec (EFR) .
*#4720# Activate Half Rate Codec - Your phone uses a lower quality sound but you should gain approx 30% more Talk Time.
*#4720# With this Nokia code you can deactivate the Half Rate Codec
su garso stiprumu mazai ka turi bendro. Su garso kokybe, galbut. Ir visa tai galioja tik pokalbio metu. Tai yra su MP3 klausymu is viso neturi nieko bendro jei kas tikisi kazko.
