17
Voice Related Problems
Symptoms Possible Problems/ Solutions
There is no dial tone. Please wait for 1~2 minutes after the device is turned on.
Please checkthe NETWORK indicator. If you have no
good RF reception, change the location of the device.
There is a prompt / phone alert /
announcement as soon as I lift the
phone off the hook.
Make sure your nano-SIM card is inserted correctly and
the PIN number has been entered. If the PIN number has
been entered incorrectly then you will need to enter the
PUK code when prompted.
The line is noisy/distorted when I lift the
phone off the hook.
• Remove any electrical appliance which is too close
to the phone or your device.
• 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.
• Please contact your service provider.
After dialing the last digit I hear
nothing/silence.
When you have finished dialing you can press the # key
or wait 4~8 seconds to connect the call.
18
Others
Symptoms Possible Problems / Solutions
Problems with the passwords.
• For the default Wi-Fi connection password and the
default password of the 4G CPE web page, please
check the label on the device.
• If you changed the passwords and forgot them,
you need to restore the device to the factory
default settings.
19
Getting More Help
You can get help by:
Sending an email to mobile@zte.com.cn
Visiting https://www.ztedevices.com
20
LEGAL INFORMATION
Copyright © 2021 ZTE CORPORATION.
All rights reserved.
No part of this publication may be quoted, reproduced, translated or used in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without the prior written permission of ZTE
Corporation.
Notice
ZTE Corporation reserves the right to make modifications on print errors or update specifications in this
guide without prior notice.
Disclaimer
Images and screenshots used in this guide may differ from the actual product. Content in this guide may
differ from the actual product or software.
Trademarks
ZTE and the ZTE logos are trademarks of ZTE Corporation.
Other trademarks and trade names are those of their respective owners.
Version No.: R1.0
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