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Settings
T-Rating stands for Telecoil rating and represents
inductive coupling with hearing aids that are operating
in telecoil mode. A telecoil is a small piece of tightly
wrapped wire, built into some hearing aids. While the
microphone of a hearing aid picks up all sounds, the
telecoil will only pick up an electromagnetic signal from
the telephone. Thus, users of telecoil-equipped hearing
aids are able to communicate over the telephone without
the amplification of unwanted background noise.
Phones rated T3 or T4 meet FCC requirements and
generate less interference to hearing devices set in
telecoil mode.
A combination of M-rating and T-rating defines the
final HAC rating and is a deciding factor in selecting
cellular phones for people with hearing problems. A HAC
compliant phone could be rated:
•
M3/T3
• M4/T3 (or M3/T4)
• M4/T4
These ratings assist hearing device users to find
phones that are compatible with their hearing devices.
Ratings are shown on the phone’s box or label. The
ratings are not guarantees for suitability. The results
vary depending on the individual’s hearing loss and the
immunity characteristics of the used hearing device, i.e.
its resistance to interference. The best way to evaluate
the suitability of the phone is to try it with the intended
hearing aid device.
Sonim XP3300-A-R1 has been tested for hearing aid
device compatibility and complies with the Federal
Communications Commission (FCC) requirements. Sonim
XP3300-A-R1 is rated M3/T3.
HAC Settings
To enable coupling with a hearing aid device operating in
telecoil mode, select
Menu > Settings > Phone Settings
> Hearing Aid > On . Once HAC is enabled, the “HAC”
symbol is displayed on the Home screen. Select Off to
disable this feature.
Menu > Settings > Phone Settings > Hearing Aid >
Off is also the setting providing acoustics coupling with
hearing aid device operating in microphone mode.
While using the mobile phone for voice calls
with hearing aid, slightly adjust the position
of the phone against the ear to reduce the
interference and to give better voice quality.
Network Settings
Select
Menu > Settings > Network settings
. The
following network settings are displayed:
Network Selection
This relates to various network related settings. You
can select your network, specify the network account,
indicate whether GPRS is required at all times, and so on.
• New search: You can search the network for
the phone to connect when you are selecting
the network manually.
• Select Network : Your phone will select
the network automatically or you can do it
manually.
• Selection Mode : You can select Auto to set
the phone to automatically select a cellular
network available in your area, or select
Manual to set the network manually. If manual
mode is set, the user has to invoke Select
Network
to do network selection.