How do i empty a full voice mailbox?

[AC Question]

People can't leave a message,as the recording days my mailbox is full.

 

[meattray]

You'll have to log in to your carrier voicemail service and delete the messages.

You'll usually have to enter a pin and then it's usually pressing number 3 or 7 to delete the voicemail.

 

[ManiacJoe]

Check your apps list to see if your carrier installed a voicemail app for you.
If not, you will need to dial into the carrier's voicemail system and use the menu from there.