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We have eight workshops designed to supercharge your job search by showing you the how-to's of finding the right employment or progressing in your career choice.When transferring the card to this mode significantly reduces power consumption and thus increases the work of the battery.Generally, all modern SIM-cards support this mode.*#3370# – Enhanced Full Rate Codec (EFR) activation. It also help if u want to use GPRS and the service is not responding or too slow. This function with its inclusion on the idea, should significantly improve the quality of speech, but unfortunately, it must be supported by your connection.When the work is slightly increased power in the phone call (about 5%).How do I know, none of the Russian cellular operators do not support this feature.