AT&T WF721 IP Phone User Manual

24 Frequently Asked Questions Troubleshooting 25
Problem Possible Solution
My answering
machine won’t
pick up calls
Set your answering machine settings to
pick up calls before network voicemail,
which is approximately four (4) rings.
Or, you can have network voicemail
removed from your account by calling
AT&T Customer Care. Dial 611 from your
connected phone or 800-901-9878.
I hear a
constant low
frequency tone
(not dial tone)
when I try to
place a call
Hang up your home phone to restore dial
5.51" (W) × 4.33" (D) × 1.18" (H)
8.26 oz. (including antenna and battery)
1,900 mAh
Talk time
Approximately 3 hours (2G and 3G)
Standby time
Up to 25 hours
The value of the talk time or standby time varies with
the actual environment.