ZTE WF721 User Guide
Confidential and Proprietary Information of ZTE CORPORATION 13
Troubleshooting
Symptom
Solution
No dial tone
Please wait for 1~2 minutes after the
WF721 is powered on.
If you do not see a green light (signal
strength), move the WF721 to a place with a
stronger signal
There is a prompt/
phone alert/
announcement as soon
as I lift the phone off the
hook.
Make sure your (U)SIM card is inserted
correctly and the PIN number has been
entered. If the PIN number has been
entered incorrectly for three consecutive
times, you will need to enter the PUK code
when prompted.
The line is noisy/
distorted as soon as I lift
the phone off the hook.
Remove any electrical appliance which is
too close to the phone or the WF721.
The cable or phone set might be faulty.
I hear a rapid engaged
tone as soon as I lift the
phone off the hook.
Put the phone on the hook and try again.
After dialing the last digit
I hear nothing /silence.
When you have finished dialing you can
wait several seconds to connect the call.
Summary of Contents for WF721
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