AT&T WF721 IP Phone User Manual


 
14 Using Your Device Using Your Device 15
NOTES
:
•   Four volume levels are available (level 1 to level 4); the 
default setting is the highest at level 4.
•   Your home phone(s) may have a separate volume level 
setting function that is independent of the Wireless Home
Phone device.
Powering On/Off
The On/Off switch is used to turn your Wireless Home Phone
device on or off
. When powered off, the Wireless Home Phone
device will no longer send or receive calls, but it will continue to
charge the battery if still connected to the wall outlet.
To turn the Wireless Home Phone device on, slide the On/Off
switch to the On position. To turn it off, slide the On/Off switch
to the Off position.
TTY Support
TTY (Text Telephony) and TDD (Telecommunications Device
for the Deaf) are supported by the Wireless Home Phone
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.
Dial *983*889*n# to set the TTY mode.
•   n = 0: TTY off mode. The standard voice speaking mode and 
listening mode. This is the default setting.
•   n = 1: TTY full mode. Transmit and receive the TTY 
characters.
•   n = 2: VCO mode. Receive TTY characters but transmit by 
speaking into the speaker.
•   n = 3: HCO mode. Transmit TTY characters but receive by 
listening to the receiver.