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Copyright © 2004 Nokia. All rights reserved.
ii) If during activation/deactivation the wrong key is pressed, clear the wrong entry by pressing the
right selection key labeled “CLEAR”.
iii) If at any time you choose to quit the process then press the END key (the red key above the 3 key)
OR the selection key labeled “CLEAR” until all entered numbers are cleared.
3. Suggested Tip
you may wish to store the above activation/deactivation sequences in the phone book.
Name: EFR ON
Number: *3370#
Name: EFR OFF
Number: #3370#
To save the activation sequence to the phonebook, the name MUST be entered first otherwise deacti-
vation or activation of the EFR codec will occur.