Samsung SPH-M820ZKABST - Manual (Page 73)

2C. Settings 59
Settings
Your device is compatible with select TTY devices.
Please check with the manufacturer of your TTY device
to ensure that it is compatible with digital cell phones.
Your device and TTY device will connect via 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. Press > and tap > Call settings
> TTY . An informational message displays.
2. Select Yes to continue or No to cancel.
3. Touch TTY Off to turn TTY mode off.
– or –
Touch any of the following to enable the feature:
● TTY HCO, TTY VCO, or TTY Full.
DTMF Tones
This option sets the length of Dual-tone multifrequency
(DTMF) signaling tones.
1. Press > and tap > Call settings
> DTMF tones .
2. Tap Normal or Long .
Note: If TTY mode is enabled, the audio quality of non-TTY
devices connected to the headset jack may be
impaired.
WARNING: 911 Emergency Calling
Boost recommends that TTY users make
emergency calls by other means, including
Telecommunications Relay Services (TRS),
analog cellular, and landline communications.
Wireless TTY calls to 911 may be corrupted
when received by public safety answering points
(PSAPs), rendering some communications
unintelligible. The problem encountered appears
related to 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.
SPH-M820UM.book Page 59 Monday, May 2, 2011 4:56 PM