So
you gave up your old phone answering machine when you got HAL.
Some people in the family didn't want to give up that little
black box (usually in or near the kitchen) where you could press
one button and then hear every call that came in while
you were out, whether the call was for you or someone else in
the family.
HAL gave you the ability to pick up any phone in the house and
hear your messages -- without wasting your time by playing every
message on the system. Or you could go to the HAL Messages
screen and see a list of messages and who left them so you could
decide which ones you wanted to hear. Well, now with the
HAL HomeNet, you can go to any screen on the home network -- or
any web browser anywhere -- and simultaneously look
at and listen to your voice mail!