Call your voice mailbox
You can forward calls to your voice mailbox, where callers can leave you a message if you don't answer. Voice mailbox is a network service.
On the home screen, select 
, then select and hold 1.
Change the phone number of your voice mailbox
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Select
> Settings and Calling > Call mailbox . -
Select and hold the mailbox, then select Change number.
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Type in the number (ask your network service provider for it), then select OK.