TODO list
~~~~~~~~~

If you have any ideas (or preferably code) for new features, I'd like
to hear about it.

Here are some things which I would like to support in the future:

- Config file support

- support for non-ZyXEL voice modems

- simple voice mailbox features

- standalone answering machine program that handles playback, audit
  logs and deleting old messages

Internals:

- clean up the argument handling for the pvf tools
