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rating values are then added together. A sum of 5 is considered
acceptable for normal use. A sum of 6 is considered for best use.
In the example to the left, 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.
According to HAC policy(KDB 285076), we state this handset has
not been rated for hearing aid compatibility with respect to the WiFi
capability.
Safety
For information about hearing aids and digital wireless phones
Wireless Phones and Hearing Aid Accessibility
http://www.accesswirele ss.org/hearingaid/
FCC Hearing Aid Compatibility and Volume Control
http://www.fcc.gov/cgb/consumerfact s/hac_wirele ss.html
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