A voice mailbox is typically associated with a telephone

number or extension. When the number is called and the line

is busy or not answered, the caller hears a message left by

the owner and is given instructions for leaving a message or

other available options, such as paging the individual or

being transferred to an operator. The owner of a mailbox can

change the outgoing message or listen to incoming messages

after entering a PIN. Members of a voice mail system can

generally forward or broadcast messages to other members'

boxes.