User Guide

Chapter 4 : Phone 65
6 Ta p MMS APN and enter the settings you obtained from AT&T.
7 Ta p Change Settings.
Enable TTY/TDD
A TTY (also known as TDD or text telephone) is a telecommunications
device that allows people who are deaf or hard of hearing, or who have
speech or language disabilities, to communicate by telephone. Your phone
is compatible with select TTY devices.
Not all wireless service providers support the TTY feature on your phone.
Check with AT&T for information.
You can connect a TTY/TDD machine to your phone using the headset
jack. Check with the manufacturer of your TTY device for connectivity
information. Be sure that the TTY device supports digital wireless
transmission.
NOTE When TTY is enabled, you cannot use the headset jack for anything else,
and all audio modes are disabled on your phone, including holding the phone up to
your ear and listening.
1 Connect a TTY/TDD device to your phone using the headset jack.
2 Open Phone .
3 Open the application menu and tap Preferences.
4 In TTY/TDD, tap Off to switch TTY/TDD from Off to On.
Enable HAC
To use your phone with a hearing aid, turn on the HAC feature. This feature
ensures that your phone can make the necessary connection with a hearing
aid.
1 Open Phone .
2 Open the application menu and tap Preferences.
3 In HAC, tap Off to switch HAC from Off to On.