LG UN280 - Manual (Page 115)

Safety
113
Saf
e
ty
M 3 + M 2 = 5
T 3 + T 2 = 5
In the above example, 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.
To ensure that the Hearing Aid
Compatibility rating for your
phone is maintained, secondary
transmitters such as Bluetooth
components must be disabled
during a call.
For information about hearing
aids and digital wireless
phones
Wireless Phones and Hearing
Aid Accessibility
http://www.accesswireless.org
FCC Hearing Aid Compatibility
and Volume Control
http://www.fcc.gov/cgb/
consumerfacts/hac_wireless.html