User's Manual

Coolpad Quattro
®
II 4G Health/Safety/Warranty Guide 27
In the example illustrated above, if a hearing aid meets the M2 level rating and the wireless phone meets the M3 level rating, the sum of the
two values equal M5. This should provide the hearing-aid user with “normal usage” while using their hearing aid with the particular
wireless phone. “Normal usage” in this context is defined as a signal quality that’s acceptable for normal operation.
The M mark is intended to be synonymous with the U mark. The T mark is intended to be synonymous with the UT mark. The M and T
marks are recommended by the Alliance for Telecommunications Industries Solutions (ATIS). The U and UT marks are referenced in
Section 20.19 of the FCC Rules. The HAC rating and measurement procedure are described in the American National Standards Institute
(ANSI) C63.19 standard.
When you're talking on a cell phone, it's recommended that you turn the BT (Bluetooth) mode off for HAC.
For information about hearing aids and digital wireless phones
Wireless Phones and Hearing Aid Accessibility
http://www.accesswireless.org/Home.aspx
FCC Hearing Aid Compatibility and Volume Control
http://www.fcc.gov/cgb/consumerfacts/hac_wireless.htm
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