OPPO R11s

OPPO R11s

Android 7.1

I can't make voice calls on my OPPO R11s Android 7.1

Cause 2 of 12: There's a problem at the receiving end

If you have problems making a call to a specific number, the error may be at the receiving end.

Solution: Try making a call to another number.

OPPO R11s

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