User's Manual

Coolpad Quattro
®
II 4GPage | 61
61
otherstothis interference noise,and phones also vary in theamountofinterferenc e they generate.
Thewireless telephoneindustryhas developedaratingsystemforwireless phones, toassi sthearing
device users to find phones that may be compatiblewith theirhearing devices. Not all phoneshave
been rated. Phones
 that are rated have the rating on their box or a label located on the box.  The
ratingsarenotguarantees. Resultswillvarydependingontheuser'shearingdeviceandhearingloss.
Ifyour hearingdevice happens to bevulnerableto interference, you may not be ableto  use
a rated
phone successfully. Trying out the phone with your hearing device is thebestway to evaluate it for
yourpersonalneeds.
M‐Ratings: Phones rated M3 or M4 meet FCC requirements and are likely to generate less
interferencetohearingdevicesthanphones  thatare notlabeled.M4is
thebetter/higherofthetwo
ratings.
T‐Ratings:Phones rated T3 orT4meetFCCrequirementsandarelikely togenerate less interference