Hearing aids, Noise canceller, Dtmf tones – Sharp AQUOS Crystal User Manual
Page 133

Settings
123
connect using a special cable that plugs into your phone’s headset jack. If this cable was not
provided with your TTY device, contact your TTY device manufacturer to purchase the connector
cable.
To turn TTY Mode on or off:
1. From home, touch
> Settings
> Call.
2. Touch TTY mode and then touch TTY Full, TTY HCO, or TTY VCO to turn TTY mode on.
– or –
Touch TTY Off to turn TTY mode off.
Note: When enabled, TTY mode may impair the audio quality of non-TTY devices connected to the
headset jack.
Warning: 9-1-1 Emergency Calling
It is recommended that TTY users make emergency calls by other means, including
Telecommunications Relay Services (TRS), analog cellular, and landline communications. Wireless
TTY calls to 9-1-1 may be corrupted when received by public safety answering points (PSAPs),
rendering some communications unintelligible. The problem encountered appears related to TTY
equipment or software used by PSAPs. This matter has been brought to the attention of the FCC,
and the wireless industry and the PSAP community are currently working to resolve this.
Hearing Aids
Hearing aids lets you adjust your phone’s settings to help you hear more clearly during a phone call.
1. From home, touch
> Settings
> Call.
2. Touch Hearing aids to enable it.
Noise Canceller
Noise Canceller suppresses background noise from around you during calls.
1. From home, touch
> Settings
> Call.
2. Touch Noise Canceller to enable it.
DTMF Tones
DTMF tones lets you set the length of Dual-tone Multi-frequency (DTMF) tones.
1. From home, touch
> Settings
> Call.
2. Touch DTMF tones and select the length you want to set.