Personal Home Support Centre Device Guides OPPO R15 Pro Calls & contacts I can't make voice calls

OPPO R15 Pro

Android 8.1
Back to section Calls & contacts

I can't make voice calls

There's no credit on your prepaid phone
Your number is no longer in service
Flight mode is turned on
Barring of outgoing calls is turned on

Turn call barring on or off

Press Settings.
Press Call.
Press Operator's Call Related Settings.
Press Call Barring.
Press the required SIM.
Press the field next to the required barring type to turn the function on or off.
Key in your barring password.
Press the Home key to return to the home screen.
  • 1
    Find "Call Barring"
    • Press Settings.
    • Press Call.
    • Press Operator's Call Related Settings.
    • Press Call Barring.
  • 2
    Turn call barring on or off
    • Press the required SIM.
    • Press the field next to the required barring type to turn the function on or off.
    • Key in your barring password.
  • 3
    Return to the home screen
    • Press the Home key to return to the home screen.

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Your phone is overloaded for unknown reasons
The SIM is faulty
Not adequate network coverage
There is a temporary network problem
There's an error at the receiving end
The selected network is out of range
The selected network mode is not available
Roaming isn't activated on your service