Zte Blade 11 Prime User Manual page 74

Set Real-Time Text (RTT) Options
When you are connected to the 4G LTE network or a Wi-Fi network
(with Wi-Fi calling enabled), from the home screen, touch > >
Settings > Accessibility > Real-time text (RTT) call to set RTT
options. For details, see Set Up RTT Work Mode.
Set Hearing Aids
Your phone supports Hearing Aid Compatibility (HAC) function.
When you turn on the hearing aid compatibility and use a hearing
aid with a telecoil to answer the phone, it will help you hear more
clearly during the phone call.
1. From the home screen, touch > > Settings >
Accessibility.
2. Touch Hearing aids to turn on/off hearing aid compatibility.
CAUTION:
Do not turn on the Hearing aids option unless you use a hearing aid
with a telecoil. Using this setting without a hearing aid or with a
hearing aid without a telecoil may be harmful to your hearing.
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