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Powering On/O
The On/O button is used to turn your AT&T Wireless Internet device on or o. When
powered o, the AT&T Wireless Internet device will no longer send or receive calls, but
it will continue to charge the backup battery if still connected to the wall outlet.
To turn on your AT&T Wireless Internet device, press the On/O button so that it is
depressed. The Power light will turn solid green if connected to a power supply;
it will blink green if on backup battery power. To turn o your AT&T Wireless Internet
device, push the On/O button so that it is not depressed.
TTY Support
TTY (Text Telephony) and TDD (Telecommunications Device for the Deaf) are
supported by the AT&T Wireless Internet device. In order to use the TTY network,
you must have a TTY-compatible phone and be in TTY mode. Note that most digital
wireless devices are TTY-compatible.
To set the TTY mode or turn TTY support o, dial *889n# (*TTYn#) on your
connected phone, replacing n with one of the following numbers:
• Replace n with 0 for TTY O mode. Users who can hear and talk can turn o TTY
support. This is the default setting.
• Replace n with 1 for TTY Full mode. Users who cannot talk or hear can use this
mode to send and receive text messages through a TTY device.
• Replace n with 2 for VCO mode. Users who can talk but cannot hear can use this
mode to talk through the phone and receive responses via text messages.
• Replace n with 3 for HCO mode. Users who can hear but cannot talk can use this
mode to listen to calls and respond via text messages.
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