Справочник Пользователя для Samsung Galaxy Continuum

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T-Ratings: Phones rated T3 or T4 meet FCC requirements and are 
likely to generate less interference to hearing devices than 
phones that are not labeled. T4 is the better/higher of the two 
ratings. 
Hearing devices may also be rated. Your hearing device 
manufacturer or hearing health professional may help you find 
this rating. Higher ratings mean that the hearing device is 
relatively immune to interference noise. The hearing aid and 
wireless phone 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 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.
HAC/Wi-Fi Language
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.
M3                 +                    M2         =     5
T3                 +                    T2         =     5