Pantech 4 Manuale Utente

193

192

01
02
03
04
05
06

01
02
03
04
05
06

Appendix

07

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