Learn how to use voicemail on your Samsung Galaxy Mega
From the Home screen, tap App > Settings > My device > Call > Voicemail Service.
Voicemail service provided by your carrier is the default.
Tap My carrier to remove the carrier Voicemail service.
You can view or modify your voicemail number from this menu.
From the Home screen, tap App > Settings > My device > Call > Voicemail settings.
Tap the Voice mail number field, backspace to erase the digits, and enter a new voicemail number using the keypad, then tap OK.
Tap OK.
You can select a unique ringtone for Voicemail alerts.
From the Home screen, tap App > Settings > My device > Call > Sound.
Tap a ringtone to hear it played.
Select a ringtone and tap OK.
This option allows you select vibration settings for Voicemail alerts.
From the Home screen, tap App > Settings > My device > Call.
Tap Vibrate to create a checkmark and activate the Vibrate feature.