AT&T Wireless Home Phone User Manual page 26

Problem
Signal strength
indicator is
blinking Green
Red signal
strength
indicator
Flashing Red
signal strength
indicator
Can't connect
to my 3G
MicroCell
(signal strength
indicator is not
flashing Green)
SIM Card
doesn't work
in my mobile
device
20
Possible Solution
• The Wireless Home Phone is connected to a
3G MicroCell, and is operating properly.
• Make sure the external antenna is installed
and securely fastened.
• Move your device to another area of the
home with a strong wireless signal.
• SIM is missing or not installed properly.
1) Remove the battery cover and back-up
battery.
2) Locate the SIM card slot and insert
the SIM card into the slot until secure.
The SIM card will click and lock in place
when properly installed in the correct
orientation.
• SIM card may be invalid or damaged and
need to be replaced.
• Add the phone number associated with your
Wireless Home Phone to your 3G MicroCell
Approved User List.
• Power cycle your 3G MicroCell as well as your
Wireless Home Phone device.
• Make sure the Wireless Home Phone is within
range of the 3G MicroCell.
• The SIM card provided with your Wireless
Home Phone is intended for use only in your
specific Wireless Home Phone device and
can not be used in a mobile handset.
Troubleshooting