Select Menu > Ctrl. panel > Call mailbox.
When you open the Voice mail application (network service) for the first time, you are asked to enter the number of your voice mailbox.
To call your voice mailbox, scroll to Voice mailbox, and select Options > Call voice mailbox.
To call your mailbox in the home screen, press and hold 1; or press 1 and then the call key. Select the mailbox you want to call.
To change the mailbox number, select the mailbox and Options > Change number.