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  1.    #1  
    Is their a code to turn on EFR (enhanced full rate) on the Treo 270. I wouldn't mind the better sound quality and I don't mind a little extra battery drain. I know you can do it with other phones.
  2.    #2  
    To turn it on, punch in "*3370#" when you're in the dial screen. To turn it off, punch in "#3370#". Unfortunately out of the 3 networks in Poland, mine is the only one that doesn't support EFR. I actually don't know if the Treo 270 supports EFR... Let me know if someone has got it working.
  3. #3  
    I tried it and got a network error - Harisburg, PA.
    Bob
  4. #4  
    Originally posted by paulweiss
    I actually don't know if the Treo 270 supports EFR... Let me know if someone has got it working.
    The Treo GSM/GPRS module (a Wavecom Wismo) supports EFR ... and is enabled by default.

    However (as you noted yourself) your network must support it for it to work...

    dB

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