AT&T WF721 manual Securely fastened

Problem	Possible Solution
Poor voice	•  Make sure all connections are firmly in place.
quality	•  Make sure the external antenna is installed and
	securely fastened.
	•  Move your device to another area of the home
	with a strong wireless signal (3 green bars or
	more), typically near a window or outside wall.
	•  Make sure the home phone that is connected
	to the Wireless Home Phone base is of good
	quality and in good working order.
	•  Install using the phone cable included with the
	Wireless Home Phone base.
	•  Make sure the antenna is in a vertical position
	and increase the distance away from other
	electronic devices and the Wireless Home
	Phone base (including cordless base stations,
	Wi-Fi routers, and cell phones).
	•  Voice quality may degrade with a low battery
	charge (red) when operating with battery.
	Connect to an AC power source to recharge
	when power is available.
Wireless	•  The Wireless Home Phone base is connected to
Service	a 3G MicroCell, and is operating properly.
indicator is
blinking green
24	Troubleshooting

Problem	Possible Solution
Wireless	•  Make sure the external antenna is installed and
Service	securely fastened.
indicator	•  Move your device to another area with sufficient
displays a red	network signal (at least 1 to 2 green bars are
antenna and	displayed).
no bars are lit
Solid red	A software update is in progress and may take
Wireless	up to 7 minutes to complete. Once complete,
Service	the LEDs on your Wireless Home Phone base will
indicator	return to normal state.
(all other
indicators
solid green)
Blinking red	•  SIM is missing or not installed properly.
Wireless	1)  Remove the battery cover and battery.
Service	2)  Locate the SIM card slot and insert the SIM
indicator
	card into the slot until secure.
	•  SIM card may be invalid or damaged and needs
	to be replaced. For a replacement SIM card, take
	your Wireless Home Phone base to your local
	AT&T store. Or, call AT&T Customer Care at
	1-800-331-0500.
Troubleshooting	25