1. Start by setting the Tone control in the middle between the “Low” and “High” settings.
2. Make sure the Volume control is in the middle between the “Low” and “High” settings.
3. Place a call.
4. Press the VOL button to turn on amplification.
5. As you listen to the person on the other end of the line, experiment by slowly increasing the Volume setting. Also, try moving the Tone control slightly toward the “Low” or “High” settings. You need to set this only once. Every time you press the VOL button, the CrystalTone will use these settings.

NOTE: Some hearing aids may be sensitive when high-frequency sounds are ampified. If you experience a “crackling” sound, please try the following:

• Move the Tone control slightly toward “Low” until the crackling stops.
• Move the Volume control slightly toward “Low” until the crackling stops.
• Change the Crystal Tone switch to the “B” setting to reduce high-frequency amplification. Then, repeat the steps above.(This switch is located on the bottom of your phone.)

Tags: amplified telephone, crystaltone, ultratec

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