Samsung M620 - SPH UpStage Cell Phone Manual page 323

Sprint Nextel further suggests you experiment with multiple phones (even
those not labeled M3/T3 or M4/T4) while in the store to find the one that
works best with your hearing aid device. Should you experience
interference or find the quality of service unsatisfactory after purchasing
your phone, promptly return it to the store within 30 days of purchase.
With the Sprint 30-day Risk-Free Guarantee, you may return the phone
within 30 days of purchase for a full refund.
More information about hearing aid compatibility may be found at:
www.fcc.gov,www.fda.gov
Getting the Best Hearing Device Experience With Your Phone
To further minimize interference:
There is usually less interference on the microphone setting than the
telecoil setting.
Set the phone's display and keypad backlight settings to ensure the
minimum time interval:
1. Select Menu > Settings > Display > Backlight.
2. Select Display or Keypad and press
3. Select the minimum time settings (8 seconds or Off) and
press
Use phones with a pull-out antenna. Phones with embedded
antennae may produce more interference.
Position the phone so the antenna is farthest away from your hearing
aid.
Move the phone around to find the point with the least interference.
Section 4A: Important Safety Information
www.accesswireless.org
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