AT&T WF721 User manual

User Guide
AT&T Wireless Home Phone

Wireless Home Phone (“WHP”) device is a mobile device that may be used
with home phone equipment in different locations in the U.S. WHP device
requires a battery to be installed in the device at all times to operate. In
the event of a power outage, the battery can be used as a back-up battery.
However, a landline phone requiring separate electric power to operate
(e.g. cordless phones) connected to a WHP device will not place or receive
calls (including 911 calls) during a power outage. For emergency calls, you may
have to provide your location address to the 911 operator. Landline home
phone equipment is not included. Provides voice service only. Not compatible
with data or messaging services, home security systems, fax service, medical
alert systems, medical monitoring systems, credit card machines, IP/PBX
Phone systems, or dial-up Internet service. May not be compatible with your
DVR/Satellite systems, please check with your provider. DSL customers
should contact their provider before transferring a phone number to ensure
uninterrupted DSL Internet service. WHP device is sold for use on the AT&T
wireless network and cannot be activated on other carriers’ wireless networks.
If your WHP device is roaming, AT&T’s off-net usage restrictions apply. 
Service provided by AT&T Mobility. Portions © 2014 AT&T Intellectual
Property. All rights reserved. AT&T is a registered trademark of AT&T
Intellectual Property. All other marks contained herein are the property of
their respective owners.
Portions Copyright © 2014 ZTE CORPORATION. All rights reserved.
No part of this publication may be excerpted, reproduced, translated or
utilized in any form or by any means, electronic or mechanical, including
photocopying and microfilm, without the prior written permission of
ZTE Corporation.
The manual is published by ZTE Corporation. We reserve the right to make
modifications on print errors or update specifications without prior notice.
Version No.: V1.0 Edition Time: June 2014
Manual No.: 081704100294 i
Welcome to AT&T
Thank you for purchasing an AT&T Wireless Home Phone device
(Model: WF721). To get the most from your new device, check out our
videos and interactive tutorials at att.com/whphelp.

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Contents
Getting Started ................................................................................................................1
In the Box ........................................................................................................................1
Getting to Know Your Device ...............................................................................2
How it Works.................................................................................................................5
Device Installation..................................................................................................... 5
Voicemail ...................................................................................................................... 11
Transferring a Phone Number........................................................................... 12
Using Your Device........................................................................................................ 13
Making Calls ................................................................................................................ 13
Three-Way Calling.................................................................................................... 13
Call Waiting.................................................................................................................. 13
Call Forwarding..........................................................................................................14
Helpful Tips................................................................................................................. 15
Important Information.............................................................................................18
E911 Service ................................................................................................................18
Power Outages.......................................................................................................... 18
Device Compatibility..............................................................................................18
In-Home Wiring.........................................................................................................19
Frequently Asked Questions ...............................................................................20
Troubleshooting.......................................................................................................... 23
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Getting Started
In the Box
The package contains the following items:
AT&T Wireless
Home Phone device
Battery
Battery Cover and Power Cord
Phone Cable
(Optional)
Also Included
Quick Start User Guide
1
Specifications............................................................................................................... 29
Safety Instructions ....................................................................................................30
Radio Frequency (RF) Energy.............................................................................. 32
FCC Compliance ......................................................................................................... 33
Warranty ..........................................................................................................................34
How to Get Warranty Service ...........................................................................36
Other Warranty Programs ..................................................................................36
Notes...................................................................................................................................37

Getting to Know Your Device
Power
Voicemail Battery Charge
Wireless
Service
On/Off
Power Input
Telephone Ports
Service Port*
*Reserved for AT&T technical support.
Service port is designed for diagnostic purposes only, not for
customer use. Never place a USB-based device into the Service port
of the device under any circumstance. Doing so may damage the
device and negate its warranty.
Antenna
Battery Cover
2
LED Indicators
The table below describes possible states for each of the LED
indicators.
Key Icon Name Status Condition
Power Green Solid On
Off No power
Voicemail
Green Blinking New message
waiting
Off No messages
waiting
Battery
Charge
Green Solid High
Green Blinking Battery in use (High)
Yellow Solid Medium
Yellow Blinking Battery in use
(Medium)
Red Solid Low
Red Steady Blinking Battery in use (Low)
Red Rapid Blinking No battery installed
Off No charge
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(Continued on next page)

Key Icon Name Status Condition
Wireless
Service
Green Solid
(1 to 5 bars)
Signal Strength
(Low to High)
Green Blinking Bars
AT&T 3G
MicroCellTM
Service*
No Bars Lit No service
Red Blinking Bars Check SIM
Red Solid Bars Software updating
* For MicroCell owners only. MicroCell sold separately.
How It Works
The Wireless Home Phone device uses the AT&T cellular network to
provide phone service to your cordless or corded home phone(s).
Place it anywhere in your house where you have a wireless signal. It
does not require the use of a home phone wall jack like traditional
home phone service.
The Wireless Home Phone device provides many calling services,
such as voicemail, Caller Number ID, Call Waiting, Call Forwarding, and
Three-way Calling for your home phone(s).
Device Installation
Before You Begin
Your device works exclusively with the AT&T cellular network and
DOES NOT use your home phone wall jacks.
Your device should be located:
• Where you have a strong cellular
signal, typically near a window or
outside wall. Signal strength may
vary in different parts of your home.
• Near an electrical wall outlet.
Select which phone(s) you will use with the Wireless Home Phone
device:
• A cordless phone system with multiple handsets should be used to
place phones throughout your home.
• If using an existing phone, unplug it from the wall jack.
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LED Indicators (continued)
Note: A software update is in progress when the Wireless Service LED
is solid red and all others are solid green.

Install the Battery
Insert the battery.
Note: Battery must be installed at all times for your Wireless
Home Phone device to operate.
Install the battery cover.
Notes:
• The battery must be installed at all times for your Wireless Home
Phone device to operate properly, even when plugged into a
power source. It may take five (5) hours to fully charge (battery will
charge inside the device while connected to a power supply).
• Charge time may be impacted by environmental factors, and the
battery will stop charging when the ambient temperature is outside of
the temperature range allowed for charging (32 °F – 131 °F).
Turn on Your Device
Plug the power cord into an electrical wall outlet that is not
controlled by a wall switch.
Insert the small end of the power cord into the round Power Input
port on the back of your Wireless Home Phone device.
Slide the On/Off switch to the On position.
Check the Wireless Signal
Raise the antenna to an upright position and check the signal
strength.
More green bars indicate a stronger signal. Your device can be
relocated in your home for best performance.
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On/Off
6
Signal
Strength

Connect the Device to a Phone
1) Unplug your phone
from your home
phone wall jack.
2) Plug your phone into the
“Phone 1” port on the
Wireless Home Phone
device, using your existing
phone cable or included
phone cable.
IMPORTANT: DO NOT plug the Wireless Home
Phone device or your phones into your wall jacks.
Place a Test Call
Place a test call from your connected home phone. Make sure to
dial the 10-digit phone number, including area code.
For best results, place the cordless phone base at least 12 inches
from the Wireless Home Phone device.
Note: Keep your cordless phone plugged into a power outlet.
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Set up Voicemail and Additional Phones
Voicemail is included with your service. Dial “1” to set up and
access. If you choose to use an answering machine instead, set it
to fewer than 4 rings.
To place phones throughout your home, use a cordless phone
system with multiple handsets. Wall jacks are not used with
Wireless Home Phone.
Useful Tips
• Transferring a phone number can take about four days, so you
should keep a phone plugged into your wall jack to receive calls
on your old service (including 911) until your transfer completes.
However, you can make calls immediately on your Wireless Home
Phone device. Check transfer status at att.com/port.
• The “Phone 2” port can be used to connect an additional phone or
stand-alone answering machine. It uses the same phone number as
the “Phone 1” port.
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• Your AT&T Wireless Home Phone device does not support
incoming or outgoing fax service.
• Your AT&T Wireless Home Phone device does not support rotary or
pulse-dialing phones.
Voicemail
Your Wireless Home Phone device comes with standard wireless
voicemail. Follow the steps below to set up and use your voicemail.
Setup
Dial 1on any home phone connected to the Wireless Home Phone
device and wait four (4) seconds to connect to your AT&T wireless
voicemail. Simply follow the voice prompts to complete setup. To
enable remote voicemail retrieval and for added security be sure to
create a password during setup.
For more help on setting up your AT&T voicemail, go to att.com/
voicemailsetup.
Message Waiting
There are two indicators for a new message waiting: 1) the voicemail
icon; and 2) an intermittent dial tone.
The voicemail icon on your Wireless Home Phone device blinks
when a voicemail message is waiting. You will also hear an intermittent
dial tone on any connected phone handset before placing a call.

Using Your Device
Making Calls
Using a phone connected to your Wireless Home Phone device, place
and receive calls as you normally would. The Wireless Home Phone
device supports both cordless and corded phone dialing methods.
Note: You will need to dial 10 digits even for local numbers.
Three-Way Calling
While on an existing call, press the Flash (or Phone/Talk) key on your
phone to put the first party on hold. When you hear a dial tone, dial
the second party’s number (wait up to four [4] seconds). When the
second party answers, press the Flash (or Phone/Talk) key again to
complete the three-way connection. If the second party does not
answer, press the Flash (or Phone/Talk) key to end the connection
and return to the first party.
Note: If your phone does not have a Flash (or Phone/Talk) key, use
the off-hook mechanism supported by your phone instead .
Call Waiting
You will hear two tones if someone calls while you are already on a call.
To hold the current call and accept the waiting call, press the Flash
(or Phone/Talk) key. You can press the Flash (or Phone/Talk) key
anytime to switch back and forth between calls.
To clear the current call and accept the waiting call, enter 1and press
the Flash (or Phone/Talk) key.
To reject (User Busy) the waiting call, enter 0and press the Flash (or
Phone/Talk) key.
Retrieving Messages
To retrieve voice messages, dial 1on any home phone connected
to the Wireless Home Phone device and wait four (4) seconds to
connect to your AT&T wireless voicemail box. Simply follow the
voice prompts to listen to and manage your messages. (Alternately,
you may dial your 10-digit home phone number to access your
voicemail box.)
Remote Retrieval
To retrieve voicemail messages from a phone not connected to the
Wireless Home Phone device, dial the number associated with your
Wireless Home Phone service. When voicemail picks up, press *.
You will then be prompted to enter your password. Simply follow
the prompts to listen to and manage your voicemail messages.
Transferring a Phone Number
Transferring a landline phone number to your Wireless Home
Phone device can take about four days. Outgoing calls can be made
immediately using your Wireless Home Phone device, however
incoming calls (including 911) will continue through your old service
until the transfer is complete. Keep a phone connected to your
existing home wiring or prior service to continue to receive incoming
calls until the transfer is complete. To check the status of your
transfer, visit att.com/port.
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