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• Make sure the SIM card has been correctly inserted
• Make sure the SIM card's metal piece is not damaged or
scratched
• Make sure the SIM card service available
Can not make calls
• Make sure you have dialed a valid number and tap
• For international calls, check the country code and area code
is correct
• Make sure the Tablet is connected to a network, and the
network is not overloaded or invalid
• Consult your network operator for verification of the
situation (credit, SIM card valid, etc.)
• Make sure you have not barred outgoing calls
• Make sure your Tablet is not flight mode
Can not answer a call
• Make sure the Tablet is switched on and connected to the
network (check for overloaded or unavailable network)
• Consult your network operator for verification of the
situation (credit, SIM card valid, etc.)
• Make sure you do not transfer calls
• Make sure you have not barred certain calls
• Ensure that your Tablet is not flight mode
Call, the screen does not display the caller's name / number
• Consult the operator to verify whether you have applied for
this service
• The caller has hidden their Tablet number
Can not find my contacts
• Make sure the SIM card is not damaged
• Make sure your SIM card is inserted correctly
Call quality is not very good
• During the call you can press the volume keys to adjust the
volume
•
Check the network signal
• Make sure the Tablet 's receiver and speaker connectors are
clean
Can not use the functions described in this manua
• verification of the operator to ensure that the services you
have requested
