AT&T Z998 - Page 31

Phone Calls 31
TTY mode
Choose a TTY mode after connecting the
TTY
device to the phone’s headset port.
A TTY device can allow people who
have hearing or speech disabilities
to communicate by telephone.
Hearing aids
Turn on/off hearing aid compatibility.
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.
Speed dial
Set speed dialing keys.
DTMF tones
Set the length of dual-tone multi-frequency
(DTMF)
signal tones: Normal or Long.
Call ended operation
tips
Check this option to show operation tips
when the call is ended.