- finish hotkeys everywhere. Maybe try more than one hotkey.
- better logging.
- see voice_script.sh
- configurability of the fortune command location.
- configurability of the spool and lib location.
- mode (priority=modem, priority=vm).
- better hangup detection or timeout
- upgrade vgetty.
- see mails.
- fix the /usr/lib/mgetty/voice_script.sh: [: 0: unary operator expected
#    - ideas for edit_menu: either set a vriable such as LAST_MENU= or use a second parameter
#      this should be a normal menu. Now we implement this as hardcoded functions, which are
#      easier to handle
#    - Menu items are currently
#         key command min_level [parameter only for goto_menu]
#    - An area is a directory in $VOICEMAIL/areas/. The lists
#      of areas (audio file) is in $VOICEMAIL_AREAS and is used
#      in area_select. The file area.config in an area dir contains
#         - access level for the area, checked in area_exists
#         - read level for the area
#         - write level for the area
#         - operator level for the area
#         - owner of the area.
#         - description file (usually area.description)
#         - title file (usually area.title)
#      Messages are numbered according with date, time, process and
#      creating user to avoid locking.
# NEXT-TODO
#    - user edit
#    - public messaging (see the numberous area_XXX functions)
#    - area editor
#    - general message selector and editor
#    - see menu_item_types

