Samsung SM-J320G/DS User Manual page 40

Applications
► Single SIM models: Tap
3
Add the number to the contacts
► Dual SIM models: Tap
Add the number to the contacts
to make a voice call, or tap
list.
or to make a voice call, or tap
list.
40
to make a video call.
Access additional options.
Preview the phone number.
Delete a preceding character.
Hide the keypad.
to make a video call.
Access additional options.
Preview the phone number.
Delete a preceding character.
Hide the keypad.