How to stop HylaFAX on a specific event?

[gorski@poboxes.com]

Hi!

I would like to stop HylaFAX if AC main power fails and the system is on
battery backup power or HylaFAX should send a voice message of it's state.
That's what I'm looking for. Does anyone has a solution?
E.g.:	I haven't found an easy soltion to stop faxgetty from accepting calls.
	I have to edit /etc/ttys or init will restart faxgetty!

Thanks for tips and solutions.

- Achim


PS: Please also reply to my email address.