Enabling tty, Turning on the hac setting – Palm 755P User Manual
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Y O U R P H O N E
C U S T O M I Z I N G P H O N E S E T T I N G S
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Enabling TTY
TTY (also known as a TDD or Text 
Telephone) is a telecommunications device 
that enables you to communicate by 
telephone if you are deaf, hard of hearing, 
or have speech or language disabilities. 
Your device is compatible with select TTY 
devices. You can connect a TTY/TDD 
machine to your device through the 
headset jack while this mode is enabled. 
Please check with the manufacturer of your 
TTY device for connectivity information and 
to ensure that the TTY device supports 
digital wireless transmission. 
1 Press Phone
.
2 Press Menu
.
3 Select Options and then select Phone
Preferences.
4 Select the TTY/TDD pick list and select
one of the following settings:
TTY Full:
Sends and receives text.
TTY + Talk: Sends voice and receives 
text.
TTY + Hear:
Sends text and receives
voice.
Off:
Sends and receives voice.
5 Select OK. A red TTY icon appears in
the title bar of the Phone application 
whenever TTY is enabled. 
Turning on the HAC Setting
CAUTION
Do not turn on the Hearing Aid
Compatibility setting 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.
When the HAC (Hearing Aid Compatibility) 
setting is on, your smartphone sends the 
audio from your phone calls to the telecoil 
rather than to the microphone of your 
hearing aid. You are likely to hear calls 
much better because volume is increased 
and background noise and feedback are 
diminished. The HAC setting improves only 
the calls you listen to through the earpiece. 
It does not affect calls heard on the 
speakerphone or with a car kit or headset. 
HAC requires extra battery power, so watch 
your battery consumption when it's turned 
on.
