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Appendix
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 is synonymous for T ratings. 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 is 
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 and WLAN components must be disabled during a call. See 
page 90 for instructions to disable these components.
This phone has been tested and rated for use with hearing aids for some of the wireless 
technologies that it uses. However, there may be some newer wireless technologies used 
in this phone that have not been tested yet for use with hearing aids. It is important to 
try the different features of this phone thoroughly and in different locations, using your 
hearing aid or cochlear implant, to determine if you hear any interfering noise. Consult your 
service provider about its return and exchange policies and for information on hearing aid 
compatibility.
FCC Regulatory Compliance
FCC Regulatory Compliance
This device complies with Part 15 of the FCC Rules. Operation is subject to the following 
two conditions: (1) this device may not cause harmful interference, and (2) this device 
must accept any interference received, including interference that may cause undesired 
operation.