Choose dual SIM settings
Check data usage
Choose a network
Turn automatic use of mobile data on or off
List of screen icons
When call waiting is turned on, you can answer a new call without ending your ongoing call.
Find "Additional Settings"
Tap Operator's Call Related Settings.
Tap Additional Settings.
Turn call waiting on or off
Tap the required SIM.
Tap the indicator next to "Call Waiting" to turn the function on or off.
Return to the home screen
Tap the Home key to return to the home screen.
Tap anywhere to dismiss
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