LG G7020 Guide D'utilisation page 161

Settings [Menu 4]
• On [Menu 4-4-2-2]
If you select this, you can send your phone number to the other
party. That is, your phone number will be displayed on receiver's
phone.
• Off [Menu 4-4-2-3]
If you select this, you can't send your phone number.
Call wait service [Menu 4-4-3]
If this service is enabled, you can accept a waiting (incoming) call. If
this service is disabled, you cannot recognize the waiting (incoming)
call.
• Activate [Menu 4-4-3-1]
Activating the corresponding service.
• Cancel [Menu 4-4-3-2]
Deactivating the corresponding service.
• Check status [Menu 4-4-3-3]
Checking the status of the service.
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Menu Description